ctrl+shift+p打开搜索框, ctrl+`打开控制台,F9打断点,F5 Debug

tasks.json的配置

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "build", //任务名，和lanuch.json中的"preLaunchTask":"build"一致
            "type": "shell",
            "command": "g++",
            "args": [
                "-g",
                "${workspaceRoot}/${fileBasenameNoExtension}.cpp",
                "-o",
                "${fileBasenameNoExtension}.out",
            ], //要编译的文件mian_test.cpp,${workspaceRoot}表示vscode所打开的工作目录
            "problemMatcher": {
                "owner": "cpp",
                "fileLocation": [
                    "relative",
                    "${workspaceRoot}"
                ],
                "pattern": {
                    "regexp": "^([^\\\\s].*)\\\\((\\\\d+,\\\\d+)\\\\):\\\\s*(.*)$",
                    "file": 1,
                    "line": 2,
                    "column": 3,
                    "severity": 4,
                    "location": 2,
                    "message": 5
                }
            }
        }
    ]
}

launch.json的配置:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceRoot}/${fileBasenameNoExtension}.out",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": true,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "build"
        }
    ]
}

opencv配置(c_cpp_properties.json):

{
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/**",
                "/usr/include",
                "/home/nowburn/app/opencv/opencv3.4.7/include" //自定义安装opencv的路径
            ],
             "defines": [],
            "compilerPath": "/usr/bin/g++",
            "cStandard": "c11",
            "cppStandard": "c++11",
            "intelliSenseMode": "clang-x64"
        }
    ],
    "version": 4
}