c_cpp_properties.json

通过ctrl+shift+p 调出命令行窗口，选择编辑配置（UI）

配置名称：Linux
编译器路径：/usr/bin/gcc
IntelliSense 模式： gcc-x64 （Linux 默认为gcc-x64）

包含路径：

${workspaceFolder}/**
/usr/local/include/
/usr/local/include/opencv4/
/usr/local/include/opencv4/opencv2/

C 标准：c11
C++ 标准：c++14

配置结束后就会发现.vscode文件夹中多出一个c_cpp_properties.json文件

{
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/**",
                "/usr/local/include/",
                "/usr/local/include/opencv4/",
                "/usr/local/include/opencv4/opencv2/"
            ],
            "defines": [],
            "compilerPath": "/usr/bin/gcc",
            "cStandard": "c11",
            "cppStandard": "c++14",
            "intelliSenseMode": "gcc-x64"
        }
    ],
    "version": 4
}