form-create 的 Select 组件绑定了 change/clear/search 事件却没响应,可能是什么原因?

若使用 `form-create` 组件为 `Select` 下拉选择框添加 `change`、`clear`、`search` 监听事件后代码运行无效果,可按以下方法排查并解决: ### 检查事件绑定逻辑 要保证在遍历表单规则数组时,正确为 `Select` 类型的表单元素添加了事件处理函数。以下是正确的示例代码: ```javascript rule.value.forEach(item => { if (item.type === 'fcRow') { item.children.forEach(child => { if (child.type === 'col') { child.children.forEach(subChild => { if (subChild.type === 'select') { // 添加 change 事件 subChild.change = (value) => handleVersionLoginChange(value); // 添加 clear 事件 if (subChild.props && subChild.props.allowClear) { subChild.clear = () => handleClear(subChild.field); } // 添加 search 事件 if (subChild.props && subChild.props.showSearch) { subChild.search = (value) => handleSearch(value, subChild.field); } } }); } }); } }); ``` ### 确认组件是否支持这些事件 要确保 `form-create` 组件本身支持 `change`、`clear`、`search` 这些事件。你可以查看 `form-create` 的官方文档,确认其是否支持这些事件以及事件的使用方式。 ### 检查事件处理函数 要保证事件处理函数没有错误。例如,在事件处理函数中添加 `console.log` 语句,查看是否能正常触发: ```javascript const handleVersionLoginChange = (value) => { console.log('版本登录值改变:', value); // 这里可以添加更多的逻辑,比如更新其他表单字段等 }; const handleClear = (field) => { console.log(`${field} 字段已清空`); }; const handleSearch = (value, field) => { console.log(`${field} 字段搜索值为:`, value); }; ``` ### 检查表单规则是否正确更新 在添加事件处理函数后,要确保表单规则数组 `rule` 被正确更新。可以在添加事件处理函数后,打印 `rule` 数组,查看事件处理函数是否已经正确添加: ```javascript console.log(rule.value); ``` ### 检查组件版本兼容性 要确保使用的 `form-create` 组件版本与代码兼容。有时候,不同版本的组件可能对事件的支持有所不同。可以尝试更新或回退组件版本,查看问题是否解决。 ### 示例代码 以下是完整的示例代码,包含事件绑定和处理函数: ```vue <template> <div class="jbxx_box" style=""> <div style="padding-bottom: 10px; font-size: 16px; color: #6a83fc;">基本信息</div> <form-create v-model="formData" v-model:api="fapi" :rule="rule" :option="option" @submit="onSubmit" @reset="onSeset" :config="config"></form-create> </div> <div class="introduce" style=""> <div style="font-weight: bold; font-size: 16px;">信息介绍</div> <div> <a-button type="primary" style="margin-right: 40px;" class="addbtn" @click="submitFunction">保存</a-button> <a-button @click="backHandler">取消</a-button> </div> </div> </template> <script setup> import { ref, onMounted } from 'vue'; import { formCreate } from 'form-create'; const rule = ref(formCreate.parseJson('[{"type":"fcRow","children":[{"type":"col","props":{"span":12},"children":[{"type":"input","field":"XDLM项目名称","title":"项目名称","info":"","$required":true,"props":{"disabled":false,"showCount":true,"type":"text","maxlength":50,"placeholder":"项目名称","allowClear":false},"_fc_id":"id_Fq1qmn8apo1mb0c","name":"ref_Ft56mn8apo1mb1c","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"input","field":"XDLM遗址年代","title":" 遗址年代","info":"","$required":false,"props":{"placeholder":" 遗址年代"},"_fc_id":"id_Fwswmn8atm7tbkc","name":"ref_Fl51mn8atm7tblc","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"input","field":"XDLM项目领队","title":"项目领队","info":"","$required":false,"props":{"placeholder":"项目领队"},"_fc_id":"id_Fdd6mn8atpchbqc","name":"ref_Fvczmn8atpchbrc","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"input","field":"XDLM工作单位","title":"工作单位","info":"","$required":false,"props":{"placeholder":"工作单位"},"_fc_id":"id_Fve2mn8atrifbwc","name":"ref_Fu80mn8atrifbxc","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"input","field":"XDLM版本信息","title":"版本信息","info":"","$required":false,"props":{"placeholder":"版本信息","disabled":true},"_fc_id":"id_F5qsmn8birp3c4c","name":"ref_F1nimn8birp3c5c","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"select","field":"XDLM移动端样式","title":"移动端样式","info":"","effect":{"fetch":""},"$required":false,"props":{"mode":"combobox"},"options":[{"label":"通用版","value":"1"},{"label":"浙江版","value":"2"},{"label":"三星堆","value":"3"},{"label":"陕西版","value":"4"}],"_fc_id":"id_Few4mn8bmelhcac","name":"ref_F96rmn8bmelhcbc","_fc_drag_tag":"select","display":true,"hidden":false},{"type":"cascader","field":"Fb9fmn8bqo1rcfc","title":"省 / 市","info":"","$required":false,"props":{"_optionType":2,"options":[]},"_fc_id":"id_Fjsumn8bqo1rcgc","name":"ref_Frtomn8bqo1rchc","_fc_drag_tag":"cascader","display":true,"hidden":false},{"type":"input","field":"XDLM项目编号","title":"项目编号","info":"","$required":false,"props":{"placeholder":"项目编号","type":"text","disabled":false},"_fc_id":"id_F0aumn8c4rqdcrc","name":"ref_Fg34mn8c4rqecsc","_fc_drag_tag":"input","display":true,"hidden":false}],"_fc_id":"id_F0j5mn8apmq0avc","name":"ref_Fcfumn8apmq0awc","_fc_drag_tag":"col","display":true,"hidden":false},{"type":"col","props":{"span":12},"children":[{"type":"input","field":"XDLM遗址名称","title":"遗址名称","info":"","$required":false,"props":{"type":"text","maxlength":50,"showCount":true,"allowClear":false,"disabled":false,"placeholder":"遗址名称"},"_fc_id":"id_Fshbmn8apordb3c","name":"ref_Fgbcmn8apordb4c","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"input","field":"XDLM行政区划","title":"行政区划","info":"","$required":false,"props":{"placeholder":"行政区划"},"_fc_id":"id_Fw8hmn8asv6obhc","name":"ref_Fle1mn8asv6obic","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"input","field":"XDLM保护级别","title":"保护级别","info":"","$required":false,"props":{"placeholder":"保护级别"},"_fc_id":"id_Fdajmn8atnq9bnc","name":"ref_Fkdjmn8atnq9boc","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"input","field":"XDLM执照编号","title":"执照编号","info":"","$required":false,"props":{"placeholder":"执照编号"},"_fc_id":"id_Fy42mn8atqc1btc","name":"ref_Fimjmn8atqc1buc","_fc_drag_tag":"input","display":true,"hidden":false},{"type":"select","field":"XDLM版本登录","title":"版本登录","info":"","$required":false,"props":{"mode":"combobox","placeholder":"版本登录","_optionType":2},"_fc_id":"id_Fh7pmn8bk080c7c","name":"ref_Fbdumn8bk080c8c","_fc_drag_tag":"select","display":true,"hidden":false},{"type":"select","field":"XDLM项目类型","title":"项目类型","info":"","effect":{"fetch":""},"$required":false,"props":{"mode":"combobox"},"options":[{"label":"调查","value":"发掘"},{"label":"勘探","value":"发掘"},{"label":"发掘","value":"发掘"},{"label":"数据中心","value":"数据中心"}],"_fc_id":"id_Fxh9mn8bp5imcdc","name":"ref_Frgvmn8bp5imcec","_fc_drag_tag":"select","display":true,"hidden":false},{"type":"datePicker","field":"XDLM日期区间","title":"日期区间","info":"","$required":false,"props":{"range":true,"showTime":true,"placeholder":["开始时间","结束时间"],"format":"YYYY/MM/DD HH:mm:ss"},"_fc_id":"id_F71umn8b6tprbzc","name":"ref_Fg55mn8b6tprc0c","_fc_drag_tag":"dateRange","display":true,"hidden":false},{"type":"switch","field":"XDLM版本选择提示","title":"版本提示","info":"","$required":false,"props":{"checkedValue":true,"unCheckedValue":false,"checkedChildren":"打开","unCheckedChildren":"关闭"},"_fc_id":"id_F061mn8c62kmcuc","name":"ref_Frdimn8c62kmcvc","_fc_drag_tag":"switch","display":true,"hidden":false}],"_fc_id":"id_Flbxmn8apmq0axc","name":"ref_Fwq7mn8apmq0ayc","_fc_drag_tag":"col","display":true,"hidden":false}],"_fc_id":"id_F3avmn8apmq0atc","name":"ref_Fvlmmn8apmq0auc","_fc_drag_tag":"fcRow","display":true,"hidden":false},{"type":"input","field":"XDLM工作背景","title":"工作缘起与背景","info":"","$required":false,"props":{"type":"textarea","placeholder":"工作缘起与背景","maxlength":500,"showCount":true,"autoSize":false},"_fc_id":"id_Fxskmn8c83d2cxc","name":"ref_F8d7mn8c83d2cyc","_fc_drag_tag":"textarea","display":true,"hidden":false},{"type":"input","field":"XDLM学术目标","title":"学术目标","info":"","$required":false,"props":{"type":"textarea","placeholder":"学术目标","maxlength":500,"showCount":true,"autoSize":false},"_fc_id":"id_Fr9rmn8c9meyczc","name":"ref_Fykomn8c9meyd0c","_fc_drag_tag":"textarea","display":true,"hidden":false}]')); // 定义 change 事件处理函数 const handleVersionLoginChange = (value) => { console.log('版本登录值改变:', value); // 这里可以添加更多的逻辑,比如更新其他表单字段等 }; // 定义 clear 事件处理函数 const handleClear = (field) => { console.log(`${field} 字段已清空`); }; // 定义 search 事件处理函数 const handleSearch = (value, field) => { console.log(`${field} 字段搜索值为:`, value); }; // 遍历 rule 数组,添加监听事件 rule.value.forEach(item => { if (item.type === 'fcRow') { item.children.forEach(child => { if (child.type === 'col') { child.children.forEach(subChild => { if (subChild.type === 'select') { // 添加 change 事件 subChild.change = (value) => handleVersionLoginChange(value); // 添加 clear 事件 if (subChild.props && subChild.props.allowClear) { subChild.clear = () => handleClear(subChild.field); } // 添加 search 事件 if (subChild.props && subChild.props.showSearch) { subChild.search = (value) => handleSearch(value, subChild.field); } } }); } }); } }); const fapi = ref(null); const formData = ref({}); const option = ref({}); const config = ref({}); function parse(res) { return res.rows.map(item => ({ value: item.mVersionTile, label: item.mVersionTile // 一般需要 label 来显示选项文本 })); } let obj = { XDLMSID: 'DYBH202210141219191919212701', XDLMCID: '1001', }; onMounted(() => { // 假设 api 是已经定义好的接口调用对象 const api = { http3: { Data: { getListData: (params) => { return new Promise((resolve) => { const res = { success: true, rows: [ { mVersionTile: "测试9" }, { mVersionTile: "通用版" }, { mVersionTile: "吉林大学版" }, // 其他数据... ] }; resolve(res); }); } } } }; api.http3.Data.getListData(obj) .then((res) => { if (res.success) { const result = parse(res); const selectRule = rule.value.find(item => item.type === 'fcRow')?.children[0]?.children[0]; if (selectRule) { selectRule.options = result; // 设置默认值 formData.value['XDLM版本信息'] = "通用版"; } } else { // 假设 message 是已经定义好的消息提示对象 message.error(res.message ? res.message : '网络错误,请重试'); } }) .catch((err) => { message.error('网络错误,请重试'); }); }); function onSubmit(formData) { console.log('提交表单数据:', formData); } function onSeset() { console.log('重置表单'); } function submitFunction() { console.log('保存操作'); } function backHandler() { console.log('取消操作'); } </script> ``` ### 总结 通过以上步骤,可以逐步排查并解决 `form-create` 组件为 `Select` 下拉选择框添加事件监听后代码运行无效果的问题。

创作声明:本文部分内容由AI辅助生成(AIGC),仅供参考

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SakEmail components Copyright ?1997 - 2003 Sergio A. Kessler web: http://groups.yahoo.com/group/sakemail/To subscribe to the mailing list of sakemail, just go tohttp://groups.yahoo.com/group/sakemail/History:0.9 - First released version0.9.1b -Fixed when a mail server reply on the connection with more than one line0.9.2b - I forget to return a value in functions retrieveHeader/Message =) and fixed it. Some minor bugs that I don‘t remember fixed.- Added MIME-compliant base64 support (not for use by now). Added examples.0.9.2.1b- Fixed a bug when send a mail and the first line disappear (thanks to Arun)- Now, you could do MySMTP.MsgTo := ‘a@doma.com; b@domb.com;c@domc.com‘; the spaces before/after semicolon doesn‘t matter (I hope ;)).0.9.3b- Many changes, I added a SakMsg component that make send binary attachments a snap. But have one problem, if you send as attach a file > 20 Kb, it doesn‘t work (I don‘t know why, maybe a problem of sockets). 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Thanks also to Serge Dosyukov for sending me a fix.- Also I applied another patch of Gregor Duchalski that cure a bug with PChar when this unit is used under NT. - It seems that some machines need more delay when sendig a msg (see previous posting 19/12/97), thanks to Matjaz Bravc.- I discover a bug in the transparency code, it is fixed now. Did you see the benefits of Open Source Software ? :)26/3/981.6.1- Added a FUNCFileName private variable to manage the complete path of the attached file. I receive problems reports with this, it work now ?.- Reduced the line sleep to 30 (tell me if this value doesn‘t work for you).27/4/981.7.0- Fixed a memory leak, thanks to Don Higgins.- Moved the string esErrorInFormatOfMsg to a property of SakPOP.- Because some people need to use IP addresses instead of Host names, I‘ve added a new property IPAddress to SakPOP and SakSMTP. If both are filled, then the Host name will be used, thanks to Roger F. Reghin for reporting this. 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The default priority for each msg created will be prNormal, so you don‘t need to change your code any bit.1.8.6- Ulf Sturegren has added D4 compatibility, not many changes to the source (one letter), but he found the error.- Hou yg has sent to me a revisited IsIPAddress function, so I put the newer function in, infortunely my reply to him doesn‘t want to go.1.8.7- Ok, I discovered a weird bug, some old emailers (navigator 2) does not format the message in multipart mode if people send an attach, without writing any text and with no MIME settings. Fixed. This could be serious, I recommend upgrading.1.8.8- A small fix with the CC field. Some stupid mail servers put tabs in some fields (CC:, TO:) when they want to make a new line, the correct is to put at least a space in the beginning of the line, added a little code to &quot;fix&quot; that.1.8.9- Some ‘moderns‘ pop3 servers doesn‘t support the LAST command, so I‘ve added a little code to cope with this and added a boolean property ServerSupportLastCmd. See TSakPOP.Init for more details. Reported by Jan Najvarek.1.9.0- Kaufman Alex has added two properties to the SakMsg object, the ContentType and the Headers property, that should be self explaining (I modified a little the code he sended me, btw).1.9.1- I rewrote and greatly simplified the code that deal with the multiple address in the TO: field and remove some possible bugs in it.1.9.2- Alex discovered and fix a bug when a file attached is not enclosed between quotes, resulting in the filename without the first and last character.1.9.3- Better detection of the boundary in multipart messages. Fixed a bug when the attached file is empty.1.9.4- Chris G黱ther send me *lots* of memory leaks fixes, very good job, Chris. - Some weird PGP messages are now processed well.- Yang Qiandong from china fixed a compiler hint and a warning.- Modified TSakSMTP.FReceiveTextFromSocket as suggested by Greg Nixon.- Dmitry Bondarenko send me a patch that fixes some issues with the LAST command (that some servers don‘t implement) and other patch that fixes a problem when servers add spare words in the tail of the answer.- Some minor changes suggested by Matthew Vincent.- Support for _big_ attachments files (me).- Make the code more modular and simple (still is not very modular).1.10.0- Move some stuff to a sak_util unit.- Support for quoted-printable msgs, thanks to Chris G黱ther.- Fix the BCC field.- New property sakMsg.ContentTransferEncoding.2.0.0- Major reestructure of the files and the source code.- Simplifyied sakPOP3.pas a _lot_- Support encapsulated messages (message/rfc822).- Nested multipart messages are processed fine.- Attachs with quoted-printable are processed fine.- Many bugs fixes.2.0.1- A fiasco, sorry.2.0.2- Fixed a bug in the sak_CleanUpAddress.- Do the rigth job if the ContentType is ‘plain/text‘ and the encoding is base64.- Redone sak_ExtractAddress and sak_ExtractAlias.- New ‘Sender‘ property in SakMsg (normally not used, so do not use it, unless you know what you are doing) ‘Thanks‘ to Alex Kaufman for this.2.0.3- A *severe* bug with multiple addresses was fixed.2.0.4- Fixed bogus Message-number (Message-id is the correct) Thanks to Peter Honan- Added SizeInBytes property to the SakMsg component. (petition of Alex Kaufman)- Fixed a minor bug in TSakPOP.RetrieveHeaders. Fix from Alex.- Added RetrieveMessageOnlyHeaders and - RetrieveAllMessagesOnlyHeaders.2.0.5- Fix when the mail server reply is like <cr><cr><lf> (two cr).- Fix function IsIpAddress.- Both fixes by Alessandro Rossi.2.0.6- Fix a bug in the sak_Base64Decode function when the data to decode is null (I found it in the hard way).- Andy Charalambous make it sure you can send more than one email without disconnecting and connecting again.- And Chris ‘Memory Hunter‘ G黱ther killed some memory leaks (again).2.2.0- the f* sleep line that was bothering us for years is gone, gone, gone. Thanks to Syed Ahmed.- a getUIDL method of SakPOP. Thanks to Alex Kaufman.- a UIDL property on SakMsg. (me)- a SakPOP.GetUIDLsOnRetrieve boolean property (default false) (me)- change some ‘Exception.Create()‘ to ‘raise Exception.Create()‘ Thanks to Anton Saburov.- change SakPOP.Init from function to procedure (me)- new SakPOP.NewMsgsCount property (me)- changed SakPOP.Password to SakPOP.UserPassword (me)- changed SakPOP.ErrorInFormatOfMsg to SakPOP.StrErrorInFormatOfMsg- OnLookup event on SakPOP and SakSMTP. Thanks to Syed Ahmed.- OnConnecting event on SakPOP and SakSMTP (me).- OnReceiveTextFromSocket event on SakPOP and SakSMTP (me). (mostly for debug)- OnSendTextToSocket event on SakPOP and SakSMTP (me). (mostly for debug)- Headers are retrieved without the mail body (ugly bug, fix from Alex Kaufman)2.4.0- I‘ve revamped TSakMsg, many funcionality from SakPOP was moved to SakMsg, where it belongs.- Now SakMsg has a RawMail property wich you may find useful, now you can do: SakMsg1.RawMail.LoadFromFile(‘(uidl).mail‘); SakMsg1.ParseMsg; or SakMsg1.RawMail.LoadFromStream( myStream); SakMsg1.ParseMsg; or SakMsg1.RawMail.SaveToFile( ‘(uidl).mail‘); etc, etc...- Added a property TSakMsg.ClearRawMailAfterParse for memory saving.- the return of the f* sleep line (it causes freezes on winsock 1.1 systems like win95, win98 has winsock 2 so there is no problem if you remove the line)- lost of the DecodeProgess events :( (sorry, I don‘t know how to fit this events on the new SakMsg)2.6.0- the sleep() line is dead, it will never come back. Sending an email is a pleasure now.- SakMsg has a TextEncoding (8Bit, Base64) property, I think this will be useful to people with others charset than iso-8859-1- the base64 routines have been rewritten, they are more OO and faster (they are now in SakMIME.pas).- cosmetic changes all over the place.2.6.1- simplifyed ParseMsg2 a lot, it work better now.- speed up the search for uucoded attachs (the previous search was very dumb)- fixed bug Msg.SizeInBytes always 0- added a couple of Application.ProcessMessages to make the app more responsive.2.6.2- moved some functions from sak_utils to SakMIME.- make const parameters all over the place.- fix the bug that introduces a final crlf in quoted-printable attachs.- fix a division by zero if attached file is 0 bytes long, fixed by Peter Kollanyi.2.6.3- fix a rare bug when the header of a email (more probably a encapsulated one) has first line/s in blank. Easy and innocuous bug.2.6.4- fix the bug that insert the attachs of type text/* on the body of the email.- change the Smtp.SendMessage for Smtp.SendTheMessage to avoid a BCBuilder problem. Both problems reported by Andreas Franzen. SendMessage is still there, but it‘s now deprecated, I will remove it in the future.2.6.5- moved the ParseMsg activation from SakPOP to SakMsg (where it belong), this means that after setting the RawMail property of SakMsg, this does a ParseMsg automatically. before: SakMsg1.RawMail := ... SakMsg1.ParseMsg; now: SakMsg1.RawMail := ... hope I‘m not breaking too much code out there ... :)- some changes in the way attachments are processed (now the html part is separated correctly and images within the html are recognized)- RetrieveMessage() and RetrieveMessageOnlyHeaders() now take an additional parameter, a TSakMsg var, so people can change some parameters before parsing, see the source in SakPOP3.pas (the old way is still supported, but they will be removed in the future)- bug fixes that I do not remember.3.0.0- moved code around.- removed deprecated functions (I told you about this)- new SakAttFile unit.- Base64Encode( AttFile), Base64Decode( AttFile), UUDecode( AttFile) has been moved to the TAtachedFile object, so you can do AttFile.Base64Encode, AttFile.Base64Decode, etc- SakSMTP have lost EncodeStart, EncodeProgess and EncodeEnd events as a consequence of the previous change.- SakPOP.Canceled and SakSMTP.Canceled properties have been made read-only and SakPOP.Cancel and SakSMTP.Cancel procedures (or methods) have been added.- add a SakMsg.FillRawMail method that will fill the RawMail property with a rfc822 message based on the properties of SakMsg.- changed SakSMTP.Quit & SakPOP.Quit to Disconnect- deleted TAttachedFile.FileStream (redundant), use BodyBin- removed the function sak_getTempFileName (as it should no be trusted) use function sak_GetTempPath- the new SakIMAP component !, this make a pleasure to work with incoming emails (as you can have folders, etc). Note: the IMAP component has only been tested with the Uni. of Washington server, but it should work with any *STANDARD COMPLIANT* server. Anyways, the code of this component is very simple, so if you have problems, a look in the source code can enligthen you.3.0.1- fixed a brown paper type of bug.3.0.2- support the case where attachs do not come from files (Lars Karlslund)- minor bugfix in UUDecode function (Lars Karlslund)- if the SakMsg.Username is empty, do a VRFY command at the smtp server to try to get the full user name (sergio)- function TSakIMAP.GetFolderList (Peter Nagel)- function TSakIMAP.GetHierarchyDelim (Peter Nagel)- frustrated intent (ie. commented out) to remove memory leaks in POP, SMTP & IMAP destroy functions (Ronald Moesbergen)3.0.3- actually create (and free) the FolderList in sakIMAP (Neculau Andrei)- try to send the FQDM to the HELO command in SMTP (sergio)- commented out the VRFY command in SakSMTP, and cut the from address in the From field (in SakMsg), so if the username is empty, the SMTP server rewrite the from address in a complete way, with username & full address (sergio)- fix a minor bug in TBase64DecodingStream.Write function (Lars Karlslund)3.4.0- many, many improvements to the IMAP component by Peter Honan (I applied the patch with minor modifications, mainly to respect delphi coding standard, taking out the overloading, the selectFolder function was overcomplicated, etc)- FAQ updated (me)3.4.1- minimize the chance for two temporal messages stored on disk to collide (can be hit in previous versions if you run multiple instances of retrieveMessage at the same time)- FAQ updated.3.4.2- a new sak_CleanUpAddresses() implementation, by Knut Baardsen- better handling for temporal messages, suggested by Andrew- many improvements (including ACL -Access Control List) to the IMAP component by James Chaplin3.4.3- reverted to the old sak_CleanUpAddresses() implementation Knut‘s one is almost rigth, but don‘t let us use addresses without domains- add Headers.Clear before filling headers, by &quot;Antonio Carlos Ribeiro Faria&quot; <consultor@cys.com.br>3.5.0- add TSakMsg.LoadFromTextFile from Oak Chantosa- big jumbo mambo patch from James Chaplin first patch: 1) Operation timeout - OperationTimeout timeout for non-responding receive operations. 2) Forced abend - ForceAbend method that will disconnect and reset state. 3) Optional folder lists - AvFolderList and AvSUBFolderList provide alternatives to FolderList and SUBFolderList that ensure the lists do not contain inacessible folders ( flagged by the server ). 4) Folder name fix - Provided a function to &quot;fix&quot; folder names before submission. Currently it fixes names containing spaces. second patch: 1) Capability - Ask for server capabilities/extensions. 2) Noop - Basic noop command - updates message counts as well - preferred alternative to status. 3) Status - Explicit status command - generally useful for status of a non-selected mailbox. 4) Fetch - Retrieve message data. 5) FetchBody - Retrieve the body of the message. 6) ExamineFolder - A read-only select command. 7) CloseSelectedFolder - Close the currently selected folder. 8) Idle - RFC2177 extension - not implemented on very many servers. 9) Search - Search based on RFC2066 criteria. 10) UIDSearch - Search based on RFC2066 criteria - results are in UID form. 11) UIDStoreFlags - Store message flags based on UID. 12) UIDFetch - Fetch message data by UID. 13) UIDCopyMessageToFolder - Copy a message by UID. 14) Authenticate - Basic framework. Only plain authentication extension implemented. 15) CloseOnError - A new property that allows the user to turn off the default behaviour of disconnecting from the server when an IMAP error is received 16) Namespace - RFC2342 Namespace query command. 17) ListFullHierarchy - Property which allows a switch between &quot;*&quot; ( default ) or &quot;%&quot; as the wilcard for default folder/list methods. 18) List - Explicit list command in case it is needed. third patch: 1) fix problem with imapd 2001a, reported by Holger Mauermann. 2) remove all warnings.3.5.1- revert change to the base64 encoding routine.3.5.2- changes from James Chaplin: 1) TSakIMAP will now properly process non-numeric UIDs for messages ( there was a sak_StrWord2Int transform being used before - which always produced a 0 value for non-numeric UIDs ). 2) TSakIMAP.RetrieveMessageExt ( private method ) was modified to provide a retrieval by either MsgID or UID. 3) TSakIMAP.RetrieveMessageByUID was modified to use the slightly more efficient TSakIMAP.RetrieveMessageExt(UID) method specified in 2) above. I also made an update to the SakMIME.pas unit. The changes that were implemented are: 1) sak_Base64Encode - a basic Base64 encoder. String input and string output with the option for CRLF splitting. 2) sak_Base64Decode - a basic Base64 decoder. String input and string output with a control for CRLF interpretation. 3) sak_Base64Verify - a very basic Base64 string verifier.3.5.3- robustify and code cleanups by Paul Vernon.3.5.4- access violation fix by Paul Vernon.3.5.5- go back to good old trusty 3.5.23.5.6- this time, all the cleanup & fixes from Paul Vernon seems to work well.3.6.0- Paul Vernon latest minor fixes- added basic SMTP authentication, by Delfi and Antonio Carlos Ribeiro Faria3.6.1- fix a mayor bug when sending to many addresses (by sergio)3.7.0- add full support for html mails, by Paul Vernon. (The TAttachedFile now has an extra boolean property called embedded. This property lets you use the syntax <img src=DownloadFiles2&quot;CID@myimg.gif&quot;> in your HTML mails)- fix a weird typo for BCC fields- add Content-ID, by alejandro Castro- fix &quot;_&quot; characters in subject, regression fix.- cleanups all around, by Paul Vernon.- SMTP example updated to cope with html emails.**warning** from this version, the html part of mails will not be stored as attachments by default, if you want this behavior, you just do something like: aSakMsg := TSakMsg.Create( self); aSakMsg.HTMLAsAttachment := true; ...3.7.1- fix TSakMsg.PopulateList (Jalin)3.7.2 (codenamed &quot;melissa&quot;)- fixed a bug when the Populatelist procedure got re-written in sakMsg. It wasn‘t populating the SendTo field if there was only one e-mail address... (Paul Vernon)3.7.3 - Congratulations to Sergio on the addition to his family. This release was made by Paul Vernon who has temporarily taken over the release functions for the SakMail components whilst Sergio spends time AFK!- The 3.7.2 bug fix added blank entries to the address lists. The PopulateList procedure has been re-written again to hopefully cope with any type of e-mail address formatting.- The SMTP example noted in 3.7.0 actually shipped with this release!3.7.4- Bugfix for detecting UUEncoded mails correctly. Previous versions processed MIME mails with the value ‘begin xyz‘ if it appeared at the beginning of a line as a UUEncoded mail when they should not have.- POP and SMTP connect procedures are now functions. Existing code is unaffected. However, you can now use the following code if (sakPOP.Connect) then begin end;- POP gracefully quits if it receives an error now by calling Disconnect correctly.3.7.5- Further code to improve identification of UUEncoded mails. Essentially looking for the end as well as the beginning to ensure that it is correct.- Code optimisation of certain UUEncoded mail id functions.- Fix to ensure that the body of a mail that is UUEncoded is not lost.- MIME-Version string introduced into TsakMsg component to help with UUEncoded mail identification.- SizeInBytes property altered to read private variable using a function. If the private variable is 0, the function reads the length of the FRawMail.Text property.- Fix to make sure that the filename is not overwritten by a blank value when parsing mail-headers.3.7.6- Fixed list index out of bounds error.- Added POP3 RSET call TSakPOP.Reset.3.7.7- Altered SizeInBytes and Octets values to return server-side size when d/l headers only and use actual size once the entire message is downloaded.- Fixed a bug in GetBasicHeaders where To and CC fields could be mishandled if the mail headers were formed in a particular way.4.0.0 beta- All methods are now wrapped in classes. sak_util is now included for backwards compatibility only.- Several changes to make sakMail thread safe including the introduction of Mutexes which are cross process safe. Critical sections were an option however, although mutexes are a little slower, they are much more effective when you aren‘t sure how the code is going to be deployed...- Made several changes to the way connections are tracked, now making better use of the underlying Delphi components own properties and functions.- Several bug fixes included from solutions posted on mailing lists. Including change to datetime function to respect local time separator. There are more including one that Adem re-raised.- Removed almost all pointers as per Adems suggestion. Makes for neater code.- Hopefully backwards compatibility is kept. This is one of the objectives of the excersice although, internally, the components no longer use any of the non-object based methods. Also some of the non-object based methods actually have been re-written to create an object use the instance of the original method and then destroy the object again. This introduces a minor overhead however, because the objects are discreet, the trade is for much better memory usage and greater thread safety.- Introduced an include file to define compiler directives. Currently there are two directives. One defines whether to use the VCL or not, the other defines whether or not to use the FastStrings components. - With the intoduction of the Include file, this allows the development of code that is optional for users. One of these such changed is the use of the FastStrings base64 decoder. If you install the FastStrings components and turn on the compiler directive, you should have no functional changes however, the base64 decoder routines should have a much higher performance rating. Tests clock in at over 2000% faster attachment decoding on a P4 1.8GHz machine. (1.2Mb file 1686mS native sak Base64 Decoder, 79mS using FastStrings!)- This version is being released as a beta as the changes are pretty drastic. If the code is deemed to be stable and backwards compatible then it will be re-released as v4.0.1 with no changes.4.0.1 beta- Fixed an issue where Range Checking highlighted that the Attachment b64 decode routine raise a Range Error if the line that was to be decoded was empty. i.e. ‘‘.- Introduced a compiler directive to turn off range checking in the sakMIME procedure TBase64DecodingStream.Write to make sure that it runs correctly as Range Checking causes issues in this function.4.0.2 beta- Changed MailDateToDateTime function to the one provided by DengZhaoHui with a few modifications as even though it has better date processing than the original it caused EConvertErrors with some non-rfc dates.- Added the compiler directive to allow the inclusion of MD5 components from the DCPCrypt suite of encryption components. This allows the components to do APOP and SMTP AUTH functions as specified in RFCs 2095, 2104, 2449 and 2554. {UseDCP} ***** NOTE: These functions are experimental as although they are RFC compliant, they have not been tested against a secure mail server yet... *****- Using EurekaLog during load testing of the POP mail component, found and fixed several AV‘s in sakMSG, sakMIME and sakPOP. Mainly simple mistakes that required re-ordering of code or more checks before trying to manipulate data.- Altered the sockets code to be more stable with some servers. The previous implementation was totally incompatible with SendMail NT v3.0.2.- Fix added to compensate for incorrect operation of Connected property in some versions of Delphi.- Altered GetMultiLineFieldBody as per Adems suggestion. Also took some of Adems code and added it to GetFieldValueFromLine as the escape characters can appear in single line headers as well as multi-line ones.- TClientSocket is deprecated in Delphi 7. This may be the next large change in the sakEmail components. - Updated distribution to include more RFC‘s regarding the message format, POP and IMAP and hashing functions for CRAM mechanisms.- Fixed the handling of redirected mails as created by Eudora.- Force PopulateList to clear the list before populating it again.- Created a Delphi 6 package file.4.0.3 - Fixed AUTHSMTP buffer initialisation error. (Dmitry G. Kozhinov and Gabi Slonto)- Improved identification of servers that do not support the UIDL command. A small overhead is intorduced on servers that do support the command and have several mails to download but the feature allows better interaction with those servers that do not support UIDL.- Priority is now reported correctly when an e-mail is being decoded rather than only being used when sending an e-mail.4.0.4- Fixed an issue with a malformed header in a mail sent from MS Word through an Exchange server- Added a couple of try...finally blocks to the sakIMAP component.- Altered the sakIMAP components connected function to mirror the more accurate sakPOP method.- Consolidated all compiler directives into sakDef.inc- Added versioning compiler directives to allow the compilation of sakemail under Delphi 4.- General tidying of code. 4.0.5- Created a Delphi 7 package- Added properties to the IMAP component to allow read access to the LocalAddr and LocalHost socket properties.- Bugfix to sakMsg PopulateList function where a comma separated list did not contain any spaces- Access violation in sakPOP component due to incorrect use of free,freeandnil and compiler directives4.0.6- Added several features to the IMAP components.- Tidied up SMTP authentication routines (Improved use of MD5 for authentication using DCP components)- Included capability to send messages without an SMTP server (using Indy DNS components for MX lookups)- Bugfix in message parsing to stop a recursion loop due to a malformed mail.4.0.7- Memory leaks found by Amos and Paul regarding the sakMsg and sakPOP units respectively.- Bug fixes to attachment save code including stripping out invalid .. sequences from filenames- Improved the GetConnectedState method to check against the RemoteHost value on the Socket.- Updated POP example to be more responsive when downloading mail. Fixed a memory leak.Don‘t forget to subscribe to the mailing list (see the web pages at http://groups.yahoo.com/group/sakemail/)

MATLAB改进的前推回代法求解低压配电网潮流

MATLAB改进的前推回代法求解低压配电网潮流

内容概要:本文详细介绍了一种基于MATLAB实现的改进前推回代法,用于求解低压配电网的潮流计算问题。该方法在传统前推回代法基础上进行优化,有效解决了其在处理低压配电网时可能出现的收敛性差、计算效率低等问题,显著提升了算法在复杂网络结构和不平衡负荷条件下的稳定性与适用性。文中系统阐述了改进算法的核心原理、数学建模过程及具体的MATLAB编程实现步骤,并通过典型算例验证了该方法的准确性与有效性。同时,文档还延伸介绍了该技术在微电网优化、故障检测、储能配置等电力系统仿真研究方向的应用潜力,体现了其广泛的工程实践价值。; 适合人群:具备一定电力系统基础知识和MATLAB编程能力的高校研究生、科研人员及从事配电网分析与优化工作的工程技术人员。; 使用场景及目标:①用于低压配电网潮流计算的教学与科研实践;②支撑微电网、主动配电网等新型电力系统的建模与仿真研究;③为配电网规划、运行分析及故障诊断提供高效可靠的计算工具和技术支持。; 阅读建议:建议读者结合文中提供的MATLAB代码实例进行上机操作,深入理解算法实现细节,并尝试将其拓展应用于其他复杂配电网络场景中,以提升实际问题解决能力。

springboot人脸识别系统研究及其在社区门禁系统中的应用(编号:31283870)【附源码+数据库+万字论文+PPT+包部署+录制讲解视频】.zip

springboot人脸识别系统研究及其在社区门禁系统中的应用(编号:31283870)【附源码+数据库+万字论文+PPT+包部署+录制讲解视频】.zip

标题SpringBoot人脸识别系统及其在社区门禁中的应用研究AI更换标题第1章引言阐述人脸识别系统在社区门禁中的研究背景、意义、现状及论文方法与创新点。1.1研究背景与意义分析人脸识别技术在社区安全与管理中的重要性。1.2国内外研究现状综述国内外人脸识别系统及其在门禁领域的研究进展。1.3研究方法以及创新点说明本文采用的研究方法及主要创新点。第2章相关理论介绍人脸识别技术及SpringBoot框架相关理论。2.1人脸识别技术概述介绍人脸识别技术的基本原理与关键步骤。2.2SpringBoot框架介绍阐述SpringBoot框架的特点及其在开发中的应用。2.3数据库与网络通信技术简述数据库存储及网络通信在系统中的作用。第3章基于SpringBoot的人脸识别系统设计详细描述基于SpringBoot的人脸识别系统的设计方案。3.1系统总体架构设计给出系统的整体架构,包括前端、后端及数据库设计。3.2人脸识别模块设计介绍人脸检测、特征提取及比对模块的设计思路。3.3门禁控制模块设计阐述门禁控制逻辑及与识别模块的交互方式。第4章系统实现与测试介绍系统的实现过程及测试方法。4.1系统开发环境搭建说明系统开发所需的硬件、软件环境及配置。4.2系统功能实现详细描述系统各功能的实现代码及关键步骤。4.3系统测试与优化对系统进行功能测试、性能测试,并给出优化建议。第5章在社区门禁系统中的应用案例分析人脸识别系统在社区门禁中的实际应用效果。5.1应用场景描述介绍社区门禁系统的具体应用场景及需求。5.2系统部署与实施阐述系统在社区门禁中的部署流程及实施细节。5.3应用效果评估从安全性、便捷性等方面评估系统的应用效果。第6章结论与展望总结研究成果,提出未来研究方向。6.1研究结论概括本文的主要研究成果及人脸识别系统的优势。6.2展望指出系统存在的不足及未来改进方向,如提高识别准确率等。

【无人机三维路径规划】基于遗传算法GA结合粒子群算法PSO无人机复杂环境避障三维路径规划(含GA和PSO对比)研究(Matlab代码代码实现)

【无人机三维路径规划】基于遗传算法GA结合粒子群算法PSO无人机复杂环境避障三维路径规划(含GA和PSO对比)研究(Matlab代码代码实现)

内容概要:本文系统研究了在复杂三维环境中基于遗传算法(GA)与粒子群优化算法(PSO)融合的无人机路径规划方法,重点实现高效避障与最优路径搜索。通过构建三维空间环境模型,设计合理的适应度函数,并引入障碍物规避机制与路径平滑策略,详细阐述了GA的全局搜索能力与PSO的局部精细优化能力之间的互补机制。研究采用Matlab进行算法建模与仿真实验,对比分析了单一GA、单一PSO与GA-PSO混合算法在路径长度、收敛速度、规划稳定性及避障性能等方面的差异,验证了混合算法在提升路径规划整体性能方面的优越性。; 适合人群:具备一定Matlab编程基础和优化算法理论知识,从事无人机自主导航、智能优化算法、机器人路径规划等相关领域的研究生、科研人员及工程技术开发者。; 使用场景及目标:①应用于城市密集区、山区或复杂工业场景下的无人机自主飞行与任务执行;②为智能算法在自动驾驶、移动机器人等领域的路径决策提供技术参考;③通过对比GA与PSO算法特性,指导实际工程中优化算法的选择、融合策略设计及参数调优。; 阅读建议:建议结合提供的Matlab代码进行仿真实验,动手调整种群规模、迭代次数、交叉与变异概率、惯性权重等关键参数,深入理解算法的收敛行为与性能瓶颈,重点关注GA与PSO在探索与开发能力上的平衡机制,从而掌握混合优化策略的设计精髓。

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使用翼拍调制激光雷达初步分析无人机螺旋桨信号.zip

1.版本:matlab2014a/2019b/2024b 2.附赠案例数据可直接运行。 3.代码特点:参数化编程、参数可方便更改、代码编程思路清晰、注释明细。 4.适用对象:计算机,电子信息工程、数学等专业的大学生课程设计、期末大作业和毕业设计。

AppControl.c

AppControl.c

AppControl.c

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电磁麦克斯韦旋度方程的差分形式平面极化磁场研究(Matlab代码实现)

内容概要:本文围绕麦克斯韦旋度方程的差分形式展开,深入研究其在平面极化磁场中的数值模拟方法,并通过Matlab编程实现仿真分析。重点在于将复杂的电磁场理论转化为可计算的有限差分模型,详细探讨平面条件下磁场的空间分布特性与时间演化规律,实现对麦克斯韦方程组中旋度关系的离散化求解过程,构建稳定的数值算法框架,为电磁场问题的计算机仿真提供可靠的理论依据与技术支撑。; 适合人群:具备电磁场与电磁波理论基础及Matlab编程能力,从事电磁仿真、计算物理、微波工程或相关工程技术领域的研究生、科研人员及工程技术人员。; 使用场景及目标:①掌握麦克斯韦旋度方程的有限差分建模流程;②实现平面极化条件下磁场的动态仿真;③深入理解FDTD(时域有限差分)方法的基本原理与应用边界;④为复杂电磁环境下的数值仿真研究提供可复用的算法设计思路与代码实现参考。; 阅读建议:学习者应结合经典电磁理论与数值计算方法,细致剖析代码中的网格划分、边界条件设置与时步迭代逻辑,建议动手运行并调整参数以观察不同初始条件和介质参数对磁场传播特性的影响,从而加深对数值稳定性、色散误差及收敛性等问题的理解。

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基于遗传算法的新的异构分布式系统任务调度算法研究(Matlab代码实现)

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本地部署问题[可运行源码]

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基于共识的捆绑算法(CBBA)的多智能体多任务分配问题-远程太空船交会和维修的 RPO 规划任务研究(Matlab代码实现)

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VIP首发半导体IQC进料检验工具 - 来料检验与SPC - 专业版

半导体IQC进料检验工具!支持来料检验抽样方案、计量/计数型SPC判定与供应商表现统计。一键生成检验报告,把关来料质量。IQC/质量工程师必备。

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猫眼微信小程序源码压缩文件

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8D报告步骤详解-下载即用.zip

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基于PI+重复控制的有源滤波器谐波抑制策略模型(Simulink仿真实现)

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三电平逆变器闭环控制工程(CCS完整源代码)

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