配置逻辑主要是

launch.json指定预先处理的任务(preLaunchTask)及读取build文件(program)

tasks.json指定输入原始文件和输入build文件(args)

参考:

launch.json中的配置

{
        "version": "0.2.0",    "configurations": [        {            "name": "(gdb) Launch",            "type": "cppdbg",            "request": "launch",            "program": "${workspaceFolder}/build",    //指定读取编译文件            "preLaunchTask": "build",        //指定task            "args": [],            "stopAtEntry": false,            "cwd": "${workspaceFolder}",            "environment": [],            "externalConsole": true,            "MIMode": "gdb",            "setupCommands": [                {                    "description": "Enable pretty-printing for gdb",                    "text": "-enable-pretty-printing",                    "ignoreFailures": true                }            ]        }    ]}

tasks.json中的配置:

{
        "version": "2.0.0",    "tasks": [        {            "label": "build",            "type": "shell",            "command": "g++",            "args": [                "-g",                "${workspaceFolder}/1.cpp",    //待编译源文件                "-o",                "build"    //输出编译文件名            ],            "problemMatcher": [                "$gcc"            ]        }    ]}

编写好源文件(1.cpp)后,要build一次(ctrl+shift+b),若发现没有编译文件输出,则可能是用的命令不对,task.json->command改成"g++"试试

 另外还要注意检查源文件路径是否真如配置设定的那样