VSCode作为一个轻量级的编程软件，无论在界面、内存占用和速度等方面都完胜VS。但用vscode来写opencv代码需要自己编译OpenCV（如果是VS安装opencv则不需要自己编译opencv，因为在opencv的官网上就有编译好的文件），主要用到MinGW-w64和CMake工具。前前后后折腾了好久，终于配好了opencv的环境，写篇博客，一是为了怕自己忘了，又要重新学，二是分享一下自己的经验。主要参考两篇博客：

https://www.cnblogs.com/kensporger/archive/2020/02/19/12320622.html

https://blog.csdn.net/zhaiax672/article/details/88971248

1.安装MinGW-w64

MinGW-w64下载地址

https://github.com/huihut/OpenCV-MinGW-Build

(参考博客：https://www.cnblogs.com/kensporger/archive/2020/02/19/12320622.html）

配置环境变量

2.安装CMake

CMake下载地址：

https://cmake.org/download/

配置环境变量

记得重启电脑使3个环境变量生效

3.生成MakeFiles

需要去官网下载OpenCV的sources源文件，如果下载太慢，可以找找百度网盘，或者是国内镜像网站

https://www.bzblog.online/wordpress/index.php/2020/03/09/opencvdownload/

注意：是下载opencv对应的source源文件
打开CMake-gui.exe，点击configure，会出现一些问题，主要是会卡在下载ffmpge文件，需要改下host文件，这时只能耐心等待了。再次点击configure，完成后点generate。

Cmake下载文件时一次不成功，那就再来一次

4.编译opencv

CMD到MakeFiles所在文件夹（shift+右键，选择powershell打开），执行minGW32-make命令，或者使用多线程minGW32-make -j 4命令：

编译过程中可能会出现各种各样的错误，不要急，主要是返回第三步，去掉勾选，再次点击configure,generate。

好了，opencv编译成功，最后只剩下在VSCode中配置opencv了（筒子们，离最后的胜利不远了，坚持）

编译完成后记得输入minGW32-make install完成装载，这样才会生成Install文件夹。

5.VSCode配置

c_cpp_properties.json

{
    "configurations": [
        {
            "name": "win",
            "includePath": [
                "${workspaceFolder}/**",
                "D:\\OpenCV4.4.0\\build\\x64\\mingw\\install\\include", 
                "D:\\OpenCV4.4.0\\build\\x64\\mingw\\install\\include\\opencv2"          
            ],
            "defines": [],
            "compilerPath": "C:/Users/chong/Downloads/mingw64/bin/gcc.exe",
            "cStandard": "c11",
            "cppStandard": "c++17",
            "intelliSenseMode": "clang-x64"
        }
    ],
    "version": 4
}

launch.json

{
    "version": "0.2.0",
    "configurations": [
        
        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/${fileBasenameNoExtension}.o",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": true,
            "MIMode": "gdb",
            "miDebuggerPath": "C:/Users/chong/Downloads/mingw64/bin/gdb.exe",
            "preLaunchTask": "g++",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ]
        },
    ]
}

tasks.json

{
    "version": "2.0.0",
    "command": "g++",
    "args": [
        "-g", 
        "-std=c++11", 
        "${file}", 
        "-o", 
        "${fileBasenameNoExtension}.o",  
        "-I",  "D:\\OpenCV4.4.0\\build\\x64\\mingw\\install\\include",
        "-I",  "D:\\OpenCV4.4.0\\build\\x64\\mingw\\install\\include\\opencv2",
    
        "-L", "D:\\OpenCV4.4.0\\build\\x64\\mingw\\lib",
        "-l", "libopencv_calib3d440",
        "-l", "libopencv_core440",
        "-l", "libopencv_dnn440",
        "-l", "libopencv_features2d440",
        "-l", "libopencv_flann440",
        "-l", "libopencv_gapi440",
        "-l", "libopencv_highgui440",
        "-l", "libopencv_imgcodecs440",
        "-l", "libopencv_imgproc440",
        "-l", "libopencv_ml440",
        "-l", "libopencv_objdetect440",
        "-l", "libopencv_photo440",
        "-l", "libopencv_stitching440",
        "-l", "libopencv_video440",
        "-l", "libopencv_videoio440"
        
  
    ],// 编译命令参数
    "problemMatcher":{
        "owner": "cpp",
        "fileLocation":[
            "relative",
            "${workspaceFolder}"
        ],
        "pattern":[
            {
                "regexp": "^([^\\\\s].*)\\\\((\\\\d+,\\\\d+)\\\\):\\\\s*(.*)$",
                "file": 1,
                "location": 2,
                "message": 3
            }
        ]
    },
    "group": {
        "kind": "build",
        "isDefault": true
    }
    
 }

配置成功，记得点赞哟！！！