平台：Ubuntu
使用VSCODE 编写C/C++ 代码，需要至少配置好以下三个文件：
c_cpp_properties.json, launch.json, tasks.json
c_cpp_properties.json 用来配置头文件路径，编译器路径，以及使用的C/C++ 标准等。当VSCODE没有生成该文件时，可以使用"Ctrl + Shift + P" 调出命令搜索，输入"C/C++:Edit"， 然后点击第一个选项即可打开该json配置文件。
{"configurations": [{"name": "Linux","includePath": ["${workspaceFolder}/**","/usr/local/include/**"],"defines": [],"compilerPath": "/usr/bin/gcc","cStandard": "gnu17","cppStandard": "c++17","intelliSenseMode": "linux-gcc-x64"}],"version": 4
}tasks.json 用来配置Terminal 编译命令，当使用了第三方库时，需要在"args" 字段中指定链接库参数，如"-luv" 表示链接libuv.a 静态库，否则会报"undefined reference to xxx" 的错误，即找不到函数实现。
{"tasks": [{"type": "cppbuild","label": "demo","command": "/usr/bin/gcc","args": ["-g","${file}","-o","${fileDirname}/${fileBasenameNoExtension}","-luv"],"options": {"cwd": "${fileDirname}"},"problemMatcher": ["$gcc"],"group": "build","detail": "Task generated by Debugger."}],"version": "2.0.0"
}launch.json 用来配置debug 运行时的一些参数，特别注意的是"preLaunchTask" 字段要与tasks.json 中的"label" 字段相对应，表示匹配tasks.json 中的某项配置。
{// 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": "my_debug","type": "cppdbg","request": "launch","program": "${fileDirname}/${fileBasenameNoExtension}","args": [],"stopAtEntry": false,"cwd": "${fileDirname}","environment": [],"externalConsole": false,"MIMode": "gdb","setupCommands": [{"description": "Enable pretty-printing for gdb","text": "-enable-pretty-printing","ignoreFailures": true}],"preLaunchTask": "demo","miDebuggerPath": "/usr/bin/gdb"}]
}其中"name" 字段是自定义的，设置debug配置的名字。
"args" 字段是运行时传递给main函数的参数。
当使用Windows平台时，需要自行安装C/C++编译器，相关文件的配置相似，一般只需要关注头文件包含，库文件链接和编译器路径。