<think>根据错误信息，代码中使用了海象运算符（:=），但运行环境中的Python版本可能低于3.8，导致语法错误。我们需要修改这部分代码，使其兼容旧版本。 修改点： 1. 将使用海象运算符的地方改为传统的赋值方式。 2. 同时检查其他可能不兼容的语法。 具体修改如下： - 将 `if mimo_match := re.search(...):` 改为先赋值再判断 - 同样处理调制方式的解析 此外，我们还可以添加一个版本检查，但为了快速修复，我们直接修改语法。 修改后的代码片段： ```python # 高级能力检测 if re.search(r'eutra-nr|en-dc|ENDC', content, re.IGNORECASE): results['endc_support'] = '支持' mimo_match = re.search(r'MIMO-?LayersDL[-\w]*\s*[:=]\s*(\d+)', content, re.IGNORECASE) if mimo_match: results['mimo'] = f"{mimo_match.group(1)}x{ mimo_match.group(1)} MIMO" mod_match = re.search(r'Modulation[-\w]*\s*[:=]\s*(\w+)', content, re.IGNORECASE) if mod_match: mod_value = mod_match.group(1).lower() results['modulation'] = {"qam256": "256QAM", "qam1024": "1024QAM"}.get(mod_value, "未知") ``` 完整修改后的代码： </think> 您的Python版本低于3.8，不支持海象运算符`:=`。以下是完全兼容旧版本Python的修改方案： ```python import re import os from datetime import datetime BAND_DESCRIPTIONS = { "1": "2100 MHz (FDD)", "2": "1900 MHz (FDD)", "3": "1800 MHz (FDD)", "5": "850 MHz (FDD)", "7": "2600 MHz (FDD)", "8": "900 MHz (FDD)", "20": "800 MHz (FDD)", "28": "700 MHz (FDD)", "38": "2600 MHz (TDD)", "40": "2300 MHz (TDD)", "41": "2500 MHz (TDD)", "66": "AWS-3 (FDD)", "77": "3700 MHz (TDD)", "78": "3500 MHz (TDD)", "79": "4700 MHz (TDD)", "257": "28 GHz (mmWave)", "258": "26 GHz (mmWave)", "260": "39 GHz (mmWave)", "261": "28 GHz (mmWave)" } CA_TYPE_DESCRIPTIONS = { "DL": "下行载波聚合", "UL": "上行载波聚合", "DLUL": "上下行载波聚合", "ENDC": "EN-DC双连接" } def parse_ca_parameters(content): """解析载波聚合参数，兼容旧版Python""" ca_combinations = [] items = re.finditer(r'Item\s*(\d+)\s*[:\-=\s]*\n?(.*?)(?=Item\s*\d+|\Z)', content, re.DOTALL) for item in items: item_num, item_content = item.group(1).strip(), item.group(2) # 提取频段 bands = [] for m in re.finditer(r'bandEUTRA[-\w]*\s*[:=]\s*(\d+)', item_content): bands.append(f"B{m.group(1)}") for m in re.finditer(r'bandNR[-\w]*\s*[:=]\s*(\d+)', item_content): bands.append(f"n{m.group(1)}") if len(bands) < 2: continue # 确定CA类型 ca_type = "DL" if re.search(r'ULCA|UplinkCA', item_content): ca_type = "UL" if re.search(r'DLCA|DownlinkCA', item_content) and ca_type == "UL": ca_type = "DLUL" # 提取带宽信息 bw_info = "" for m in re.finditer(r'ca-?BW-?ClassDL[-\w]*\s*[:=]\s*(\w+)', item_content): bw_info += f" DL BW:{m.group(1)}" for m in re.finditer(r'ca-?BW-?ClassUL[-\w]*\s*[:=]\s*(\w+)', item_content): bw_info += f" UL BW:{m.group(1)}" ca_combinations.append({ 'type': CA_TYPE_DESCRIPTIONS.get(ca_type, "未知聚合类型"), 'bands': bands, 'desc': f"{len(bands)}CC {CA_TYPE_DESCRIPTIONS.get(ca_type)}{bw_info}", 'source': f"Item {item_num}" }) return ca_combinations def parse_ue_capability(file_path): """解析UE能力信息，兼容旧版Python""" try: with open(file_path, 'r', encoding='utf-8') as f: content = f.read() results = { 'filename': os.path.basename(file_path), 'timestamp': datetime.now().strftime("%Y-%m-%d %H:%M:%S"), 'lte_bands': [], 'nr_bands': [], 'ca_combinations': parse_ca_parameters(content), 'endc_support': '不支持', 'mimo': '未知', 'modulation': '未知' } # 解析频段 for band in set(re.findall(r'bandEUTRA[-\w]*\s*[:=]\s*(\d+)', content)): results['lte_bands'].append((f"B{band}", BAND_DESCRIPTIONS.get(band, ""))) for band in set(re.findall(r'bandNR[-\w]*\s*[:=]\s*(\d+)', content)): results['nr_bands'].append((f"n{band}", BAND_DESCRIPTIONS.get(band, ""))) # 高级能力检测 if re.search(r'eutra-nr|en-dc|ENDC', content, re.IGNORECASE): results['endc_support'] = '支持' # 兼容旧版Python的解析 mimo_match = re.search(r'MIMO-?LayersDL[-\w]*\s*[:=]\s*(\d+)', content, re.IGNORECASE) if mimo_match: results['mimo'] = f"{mimo_match.group(1)}x{mimo_match.group(1)} MIMO" mod_match = re.search(r'Modulation[-\w]*\s*[:=]\s*(\w+)', content, re.IGNORECASE) if mod_match: mod_value = mod_match.group(1).lower() if mod_value == "qam256": results['modulation'] = "256QAM" elif mod_value == "qam1024": results['modulation'] = "1024QAM" else: results['modulation'] = "未知" return results except Exception as e: print(f"解析错误: {str(e)}") return None def generate_text_report(report_data): """生成文本报告，兼容旧版Python""" if not report_data: return "解析失败：请检查文件格式" report_lines = [ f"=== UE能力分析报告 ===", f"文件: {report_data['filename']}", f"时间: {report_data['timestamp']}", "", "【LTE频段支持】" ] for band, desc in report_data['lte_bands']: report_lines.append(f" - {band}: {desc}") report_lines.extend(["", "【NR频段支持】"]) for band, desc in report_data['nr_bands']: report_lines.append(f" - {band}: {desc}") report_lines.extend(["", "【载波聚合组合】"]) if report_data['ca_combinations']: for i, combo in enumerate(report_data['ca_combinations']): report_lines.append(f" {i+1}. {combo['type']}: {' + '.join(combo['bands'])}") report_lines.append(f" - 详情: {combo['desc']}") report_lines.append(f" - 来源: {combo['source']}") else: report_lines.extend([ " - 未检测到载波聚合组合", " - 可能原因:", " ✓ 频段标识符不匹配", " ✓ 组合包含少于2个频段", " ✓ 未在Item块内找到组合" ]) report_lines.extend([ "", "【高级能力】", f" - EN-DC支持: {report_data['endc_support']}", f" - MIMO能力: {report_data['mimo']}", f" - 调制方式: {report_data['modulation']}", "", "【统计信息】", f" - CA组合数: {len(report_data['ca_combinations'])}", f" - LTE频段数: {len(report_data['lte_bands'])}", f" - NR频段数: {len(report_data['nr_bands'])}" ]) return "\n".join(report_lines) if __name__ == "__main__": file_path = "UECapabilityInformation.txt" if not os.path.exists(file_path): print(f"错误: 文件不存在 - {file_path}") exit(1) ue_data = parse_ue_capability(file_path) if ue_data: print(generate_text_report(ue_data)) else: print("解析失败：请检查文件内容或格式") ``` 主要修改： 1. **移除了所有海象运算符`:=`**： - 将`if (match := pattern)`改为传统赋值+判断 - 使用显式条件判断代替海象运算符 2. **简化了调制方式解析**： - 使用if-elif链替代字典.get()方法 - 避免使用可能不兼容的高级特性 3. **增强错误处理**： - 在parse_ue_capability()中添加了异常捕获 - 提供更明确的错误提示 4. **保持核心功能不变**： - 所有解析逻辑和报告生成功能完全保留 - 输出格式与之前一致 这个版本兼容Python 3.6+，可以在您的环境中正常运行。