首先新建一个文件夹作为工作空间

mkdir test

进入工作空间文件夹，在vscode中打开

cd test
code .

创建一个c++文件

#include<iostream>using namespace std;int main(){int a = 2+3;int b = a+3;for(int i = 0; i<10; i++){cout<<"hello vs code & cmake..."<<endl;}return 0;
}

因为要使用cmake编译，所以要创建CMakeLists.txt，加入如下代码

cmake_minimum_required(VERSION 2.6)project(vscode_cmake)add_executable (vscode_cmake ./main.cc)

再创建build.sh文件

vim build.sh

写入以下内容

mkdir build
cd build
cmake .. -DCMAKE_BUILD_TYPE=Debug
make

注意给build.sh文件赋予权限，否则可能无法运行

chmod +x build.sh && ./build.sh

此时，工作空间文件夹下包含三个文件，main.cc  CMakeLists.txt  build.sh

在vscode中按ctrl+shift+p，选择Configure Tasks回车，再选择Create tasks,json file from template回车，再选择others，写入如下内容

{// See https://go.microsoft.com/fwlink/?LinkId=733558// for the documentation about the tasks.json format"version": "2.0.0","tasks": [{"label": "vscode_cmake","type": "shell","command": "./build.sh","group": {"kind": "build","isDefault": true}}]
}

ctrl+shift+p，Run Build Tasks，即完成了编译，tasks.json文件就是运行了command里写的build.sh。而build.sh文件就是使用cmake进行了编译，这里注意编译的type要写debug，不要写release，否则后面打不了断点。

ctrl+shift+d, create a launch.json file，debugger选择GDB，删除默认生成的"configurations"，点击右下角Add Configuration，修改“program”为cmake编译生成的executable文件的路径，注意要写绝对路径

{// Use IntelliSense to learn about possible attributes.// Hover to view descriptions of existing attributes.// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387"version": "0.2.0","configurations": [{"name": "(gdb) Launch","type": "cppdbg","request": "launch","program": "/home/username/test/build/vscode_cmake","args": [],"stopAtEntry": false,"cwd": "${fileDirname}","environment": [],"externalConsole": false,"MIMode": "gdb","setupCommands": [{"description": "Enable pretty-printing for gdb","text": "-enable-pretty-printing","ignoreFailures": true},{"description": "Set Disassembly Flavor to Intel","text": "-gdb-set disassembly-flavor intel","ignoreFailures": true}]}]
}

在main.cc文件夹中打上断点，就可以调试了。