参考博客：Vscode配置opencv C++环境-CSDN博客

注：不需要将dll文件移动，四大配置文件按如下放置，即可正确运行。

（其他配置，我试了都报错）

四大配置文件

c_cpp_properties.json

{
    "configurations": [
        {
            "name": "win",
            "includePath": [
                "${workspaceFolder}/**",
                "G:/opencv/opencv/build/x64/cv/install/include"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "compilerPath": "G:\\mingw64\\bin\\g++.exe",
            "cStandard": "c11",
            "cppStandard": "c++17",
            "intelliSenseMode": "gcc-x64"
        }
    ],
    "version": 4
}

launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "g++.exe - 生成和调试活动文件",
            "type": "cppvsdbg",
            "request": "launch",
            "program": "${fileDirname}/build/${fileBasenameNoExtension}.exe",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${fileDirname}",
            "environment": [],
            "externalConsole": false,
            // 加下面这一大段！ 调试时终端也不在输出GPU等信息
            "logging": {
                "moduleLoad": false,
                "programOutput": true,
                "exceptions": false,
                "threads": false
            }
        }
    ]
}

settings.json

{
  "files.associations": {
    "*.py": "python",
    "iostream": "cpp",
    "*.tcc": "cpp",
    "string": "cpp",
    "unordered_map": "cpp",
    "vector": "cpp",
    "ostream": "cpp",
    "new": "cpp",
    "typeinfo": "cpp",
    "deque": "cpp",
    "initializer_list": "cpp",
    "iosfwd": "cpp",
    "fstream": "cpp",
    "sstream": "cpp",
    "map": "c",
    "stdio.h": "c",
    "algorithm": "cpp",
    "atomic": "cpp",
    "bit": "cpp",
    "cctype": "cpp",
    "clocale": "cpp",
    "cmath": "cpp",
    "compare": "cpp",
    "concepts": "cpp",
    "cstddef": "cpp",
    "cstdint": "cpp",
    "cstdio": "cpp",
    "cstdlib": "cpp",
    "cstring": "cpp",
    "ctime": "cpp",
    "cwchar": "cpp",
    "exception": "cpp",
    "ios": "cpp",
    "istream": "cpp",
    "iterator": "cpp",
    "limits": "cpp",
    "memory": "cpp",
    "random": "cpp",
    "set": "cpp",
    "stack": "cpp",
    "stdexcept": "cpp",
    "streambuf": "cpp",
    "system_error": "cpp",
    "tuple": "cpp",
    "type_traits": "cpp",
    "utility": "cpp",
    "xfacet": "cpp",
    "xiosbase": "cpp",
    "xlocale": "cpp",
    "xlocinfo": "cpp",
    "xlocnum": "cpp",
    "xmemory": "cpp",
    "xstddef": "cpp",
    "xstring": "cpp",
    "xtr1common": "cpp",
    "xtree": "cpp",
    "xutility": "cpp",
    "stdlib.h": "c",
    "string.h": "c"
  },
  "editor.suggest.snippetsPreventQuickSuggestions": false,
  "aiXcoder.showTrayIcon": true
}

tasks.json

{
    "version": "2.0.0",
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: g++.exe 生成活动文件",
            "command": "G:\\mingw64\\bin\\g++.exe",
            "args": [
                "-fdiagnostics-color=always",
                "-g",
                "${file}",
                "-o",
                "${fileDirname}/build/${fileBasenameNoExtension}.exe",//exe文件防止在build目录下
                "-IG:/opencv/opencv/build/x64/cv/install/include",
                "-LG:/opencv/opencv/build/x64/cv/install/x64/mingw/lib",
                "-lopencv_world4120"  // 这里改成你自己的版本号
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": "build",
            "detail": "编译器: G:\\mingw64\\bin\\g++.exe"
        }
    ]
}