1.安裝pyqt5
sudo apt-get install pyqt5*
2.安裝QT5開發工具，里面包含了Qt Designer等工具
sudo apt-get install qttools5-dev-tools
3.打開vscode，搜索pyqt，安裝PYQT Integration插件
4.點擊小齒輪-->擴展設置，對PYQT Integration插件進行設置
5.在Pyqt-integration › Qtdesigner: Path中，增加QT designer的路徑
/usr/lib/x86_64-linux-gnu/qt5/bin/designer
這樣完成了對Deepin下pyqt5開發環境的搭建
可能出現的錯誤提示：
錯誤提示1
Error: Command failed: "pyuic5" -p "/home/nexfia/Documents/PyQt5 Project/PDFDecryptionTool/WinUI.ui" qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb. Aborted
錯誤提示2
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
錯誤提示1是使用PYQT Integration插件對.ui文件進行預覽時提示的。
錯誤提示2時python程序導入了pyqt5，運行程序時提示的
這2個錯誤的原因在於你裝了多個pyqt5
一個可能是使用 pip 安裝了一個
pip3 install pyqt5
另一個可能是使用我上面的命令安裝了一個
sudo apt-get install pyqt5*
導致不知道用那個xcb
解決方法是將使用pip安裝的pyqt5卸載掉
pip3 uninstall pyqt5