How vscode compiles and runs c/c++ programs

安装微软C/C++插件

在VS Code的扩展图标里搜索c++，安装C/C++插件并重载VS Code

重启VS Code之后，打开一个含c/c++源码的文件夹，VS Code将会创建一个名为.vscode的子文件夹用于存放配置文件。

安装MinGW

去官网下载安装器，安装好后选择需要安装的工具：

选择好之后应用更改：

然后修改系统的环境变量，将可执行文件目录加入到Path中：

智能提示

为实现代码补全，需要创建一个c_cpp_properties.json文件。新建一个hello.c，输入：

#include <stdio.h>
int main(void)
{
    printf("hello");
    getchar();
    return 0;
}

VS Code会提示找不到头文件，点击错误处的小灯泡，编辑包含路径

在c_cpp_properties.json中修改Win32下的路径设置

"browse": {
    "path": [
        "${workspaceRoot}",
        "C:\\DevProgram\\MinGW\\lib\\gcc\\mingw32\\6.3.0\\include\\c++"
    ],
    "limitSymbolsToIncludedHeaders": true,
    "databaseFilename": ""
}

返回编辑器，点击小灯泡，将头文件所在目录添加到包含路径中

构建程序

构建程序需要创建一个tasks.json文件，点击任务->配置任务：

在弹出的选项中选择Others，然后修改tasks.json

{
    "version": "2.0.0",
    "tasks": [
        {
            "taskName": "build hello",
            "type": "shell",
            "command": "g++",
            "args": [
                "-g", "hello.c"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            }
        }
    ]
}

调试代码

调试代码需要创建一个launch.json文件，点击调试栏的齿轮图标

修改launch.json

{
        "version": "0.2.0",
        "configurations": [
            {
                "name": "(gdb) Launch",
                "type": "cppdbg",
                "request": "launch",
                "program": "${workspaceFolder}/a.exe",
                "args": [],
                "stopAtEntry": false,
                "cwd": "${workspaceFolder}",
                "environment": [],
                "externalConsole": true,
                "MIMode": "gdb",
                "miDebuggerPath": "C:\\DevProgram\\MinGW\\bin\\gdb.exe",
                "setupCommands": [
                    {
                        "description": "Enable pretty-printing for gdb",
                        "text": "-enable-pretty-printing",
                        "ignoreFailures": true
                    }
                ],
                "preLaunchTask": "build hello"
            }
        ]
    }

调试运行

返回编辑器，设置断点，按F5开始调试

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