Win10+OpenCV+Vscode C++及Cmake编译＜1＞

只记录关键和容易出错部分：

1.下载完所需要的Opencv、Vscode、CMake并配置好环境变量

2.关键点 CMake-gui时，需要把CMakeDownloadLog里的确实的下载都下载好放到指定路径下并重新configure \ generate \ minGW32-cmake -j 8 \ install

3.最主要还是vscode的json的配置，如下

---

c_cpp_properties.json

{
    "configurations": [
        {
            "name": "windows-gcc-x64",
            "includePath": [
                "${workspaceFolder}/**",
                "E:/Cpp/C++/opencv/build/x64/mingw/install/include",
                "E:/Cpp/C++/opencv/build/x64/mingw/install/include/opencv2",
                "E:/Cpp/C++/opencv/build/include",
                "E:/Cpp/C++/opencv/build/include/opencv2"
            ],
            "compilerPath": "C:/Program Files/x86_64-8.1.0-release-posix-sjlj-rt_v6-rev0/mingw64/bin/g++.exe",
            "cStandard": "${default}",
            "cppStandard": "${default}",
            "intelliSenseMode": "windows-gcc-x64",
            "compilerArgs": [
                ""
            ],
            "configurationProvider": "ms-vscode.cmake-tools"
        }
    ],
    "version": 4
}

launch.json

{
  "version": "0.2.0",
  "configurations": [

    {
      "name": "C/C++ Runner: Debug Session",
      "type": "cppdbg",
      "request": "launch",
      "program": "${fileDirname}/${fileBasenameNoExtension}.exe",// 将要进行调试的程序的路径
      "args": [],
      "stopAtEntry": false,
      "externalConsole": true,
      "cwd": "${fileDirname}", // 调试程序时的工作目录，一般为${workspaceFolder}即代码所在目录        "program": "e:/HJL/C++/opencv0405/build/Debug/outDebug",
      "MIMode": "gdb",
      "miDebuggerPath": "C:/Program Files/x86_64-8.1.0-release-posix-sjlj-rt_v6-rev0/mingw64/bin/gdb.exe",
      "preLaunchTask": "g++", // 调试会话开始前执行的任务，一般为编译程序，c++为g++, c为gcc  
      "setupCommands": [
        {
          "description": "Enable pretty-printing for gdb",
          "text": "-enable-pretty-printing",
          "ignoreFailures": true
        }
      ]
    }
  ]
}

settings.json 不重要

{
  "C_Cpp_Runner.cCompilerPath": "gcc",
  "C_Cpp_Runner.cppCompilerPath": "g++",
  "C_Cpp_Runner.debuggerPath": "gdb",
  "C_Cpp_Runner.cStandard": "",
  "C_Cpp_Runner.cppStandard": "",
  "C_Cpp_Runner.msvcBatchPath": "",
  "C_Cpp_Runner.useMsvc": false,
  "C_Cpp_Runner.warnings": [
    "-Wall",
    "-Wextra",
    "-Wpedantic",
    "-Wshadow",
    "-Wformat=2",
    "-Wconversion",
    "-Wnull-dereference",
    "-Wsign-conversion"
  ],
  "C_Cpp_Runner.enableWarnings": true,
  "C_Cpp_Runner.warningsAsError": false,
  "C_Cpp_Runner.compilerArgs": [],
  "C_Cpp_Runner.linkerArgs": [],
  "C_Cpp_Runner.includePaths": [],
  "C_Cpp_Runner.includeSearch": [
    "*",
    "**/*"
  ],
  "C_Cpp_Runner.excludeSearch": [
    "**/build",
    "**/build/**",
    "**/.*",
    "**/.*/**",
    "**/.vscode",
    "**/.vscode/**"
  ],
  "C_Cpp_Runner.useAddressSanitizer": false
}

tasks.json

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "g++",
            "command": "C:/Program Files/x86_64-8.1.0-release-posix-sjlj-rt_v6-rev0/mingw64/bin/g++.exe",
            "args": [
                "-g",
                "-std=c++17",
                "${file}",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}.exe",
                "-I",
                "E:/Cpp/C++/opencv/build/include",
                "-L",
                "E:/Cpp/C++/opencv/build/x64/mingw/bin",
                "-l",
                "libopencv_calib3d470",
                "-llibopencv_core470",
                "-llibopencv_dnn470",
                "-llibopencv_features2d470",
                "-llibopencv_flann470",
                "-llibopencv_gapi470",
                "-llibopencv_highgui470",
                "-llibopencv_imgcodecs470",
                "-llibopencv_imgproc470",
                "-llibopencv_ml470",
                "-llibopencv_objdetect470",
                "-llibopencv_photo470",
                "-llibopencv_stitching470",
                "-llibopencv_video470",
                "-llibopencv_videoio470"
            ],
            "options": {
                "cwd": "C:/Program Files/x86_64-8.1.0-release-posix-sjlj-rt_v6-rev0/mingw64/bin"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "type": "shell",
            "group": "build",
            "presentation": {
                "echo": true,
                "reveal": "always",
                "focus": false,
                "panel": "shared"
            }
        },
        {
            "type": "cppbuild",
            "label": "C/C++: g++.exe 生成活动文件",
            "command": "C:/Program Files/x86_64-8.1.0-release-posix-sjlj-rt_v6-rev0/mingw64/bin/g++.exe",
            "args": [
                "-fdiagnostics-color=always",
                "-g",
                "${file}",
                "-o",
                "${fileDirname}\\${fileBasenameNoExtension}.exe",
                ""
            ],
            "options": {
                "cwd": "C:/Program Files/x86_64-8.1.0-release-posix-sjlj-rt_v6-rev0/mingw64/bin"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "调试器生成的任务。"
        }
    ]
}

4.还有一个关键点就是，cv imread图的时候需要是绝对路径，不然Cmake编译就需要在debug或者release里的目录下把图也放一份。