pip设置国内清华源的问题 解决方式：python3 -m pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple --userERROR: Unable to save configuration. Please report this as a bug.Traceback (most recent call last): File "C:\Users\x1913\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\pip\_internal\configuration.py", line 215, in savewith open(fname, "w") as f:PermissionError: [Errno 13] Permission denied: 'C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.3056.0_x64__qbz5n2kfra8p0\pip.ini'During handling of the above exception, another exception occurred:Traceback (most recent call last): File "C:\Users\x1913\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\pip\_internal\commands\configuration.py", line 267, in _save_configurationself.configuration.save()File "C:\Users\x1913\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\pip\_internal\configuration.py", line 218, in saveraise ConfigurationError(pip._internal.exceptions.ConfigurationError: An error occurred while writing to the configuration file C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.3056.0_x64__qbz5n2kfra8p0\pip.ini: [Errno 13] Permission denied: 'C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.3056.0_x64__qbz5n2kfra8p0\pip.ini'ERROR: Internal Error.

PS2023卡在正在加载首选项 方法1.删除C:\Program Files (x86)\Common Files\Adobe\caps 方法2. 删除C:\Users\你的用户名\AppData\Roaming\Adobe\Adobe Photoshop 2022\Adobe Photoshop 2022 Settings 文件夹 方法3.在C:\Program Files\Common Files\Adobe\Creative Cloud Libraries\libs目录中，找到node.exe，改了个文件名（怕删掉引起其他问题无法恢复），然后启动就一切正常了。

Pub.dev国内镜像 export PUB_HOSTED_URL=https://pub.flutter-io.cnexport FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

Dart语言：网页匹配指定内容 var res = await dio.get(url); dom.Document document = parser.parse(res.data); List<dom.Element> divElements = document.querySelectorAll('要匹配的内容'); for (dom.Element element in divElements) { print( element.outerHtml); }

互联网人必须看的手册 手册链接：https://s75w5y7vut.feishu.cn/docs/doccn3BatnScBJe7wD7K3S5poFf