ubuntu16.04配置VSCode编译执行cpp

1. 下载vscode
2. 检查系统是否有安装g++
   
g++ -v

3. 新建一个文件夹（vscode不支持直接执行单个文件）
4. 新建一个cpp文件
   
#include<iostream>
using namespace std;
int main(){
int a=10;
int b=9;
cout<<a+b<<endl;
}

5. 安装插件c/c++，F5调试
6. 会弹出一个launch.json文件，然后修改为如下内容
   
{
"version": "0.2.0",
"configurations": [
{
"name": "(gdb) Launch",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceRoot}/${fileBasenameNoExtension}.out",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceRoot}",
"environment": [],
"externalConsole": true,
"MIMode": "gdb",
"preLaunchTask": "g++",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
]
}
]
}

7. ctrl+p，然后输入>task，选择任务：配置任务执行程序，然后会弹出一个task.json文件，修改为如下内容
   
{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "0.1.0",
"command": "g++",
"isShellCommand": true,
"args": ["-g", "${file}", "-o", "${fileBasenameNoExtension}.out"],
"problemMatcher": {
"owner": "cpp",
"fileLocation": ["relative", "${workspaceRoot}"],
"pattern": {
"regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
"file": 1,
"line": 2,
"column": 3,
"severity": 4,
"message": 5
}
},
"showOutput": "always"
}

8. 再次F5调试程序