在mac上使用vscode创建第一个C++项

准备工作：

• 安装好vscode
• 安装插件『C/C++』

正式开始：

首先是创建一个空的文件夹（比如文件夹为test），然后在其中新建一个.cpp文件（比如文件为hello.cpp）打开vscode打开test文件夹作为工作目录，接下来用三步配置好C++开发环境

第一步：

[⇧⌘P]打开命令模式，选择[C/Cpp: Edit Configurations(JSON)]命令，回车后会自动生成一个.vscode目录，目录下有一个c_cpp_properties.json文件，下面给出我的文件示例：

1. {

2. "configurations": [

3. {

4. "name": "Mac",

5. "includePath": [

6. "${workspaceFolder}/**",

7. "/Library/Developer/CommandLineTools/usr/include/c++/v1",

8. "/usr/local/include",

9. "/Library/Developer/CommandLineTools/usr/lib/clang/11.0.0/include",

10. "/Library/Developer/CommandLineTools/usr/include"

11. ],

12. "defines": [],

13. "macFrameworkPath": [

14. "/Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/System/Library/Frameworks",

15. "/System/Library/Frameworks",

16. "/Library/Frameworks"

17. ],

18. "compilerPath": "/usr/bin/clang",

19. "cStandard": "c11",

20. "cppStandard": "c++17",

21. "intelliSenseMode": "clang-x64"

22. }

23. ],

24. "version": 4

25. }

第二步：

[⇧⌘P]打开命令模式，选择[Tasks: Configure Task]命令，选择的模板为MSBuild，回车后会自动在.vscode目录下生成一个tasks.json文件，下面给出我的文件示例：

1. {

2. // See https://go.microsoft.com/fwlink/?LinkId=733558

3. // for the documentation about the tasks.json format

4. "version": "2.0.0",

5. "tasks": [

6. {

7. "label": "build c++",

8. "type": "shell",

9. "command": "g++",

10. "args": [

11. "${file}",

12. "-std=c++17",

13. "-g",

14. "-Wall",

15. "-lm",

16. "-o",

17. "${fileDirname}/${fileBasenameNoExtension}.out"

18. ],

19. "group": "build",

20. "presentation": {

21. "reveal": "silent",

22. "panel": "shared",

23. "echo": true,

24. "focus": false,

25. "showReuseMessage": true,

26. "clear": false

27. },

28. "problemMatcher": "$gcc"

29. },

30. {

31. "label": "run c++",

32. "type": "shell",

33. "dependsOn": "build c++",

34. "command": "${fileDirname}/${fileBasenameNoExtension}.out",

35. "presentation": {

36. "focus": true

37. },

38. "group": "test"

39. }

40. ]

41. }

第三步：

[⇧⌘P]打开命令模式，选择[Debug: Open launch.json]命令，选择的模板为C/C++，回车后会自动在.vscode目录下生成一个launch.json文件，下面给出我的文件示例：

1. {

2. // Use IntelliSense to learn about possible attributes.

3. // Hover to view descriptions of existing attributes.

4. // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387

5. "version": "0.2.0",

6. "configurations": [

7. {

8. "name": "c/c++ Launch",

9. "type": "cppdbg",

10. "request": "launch",

11. "program": "${fileDirname}/${fileBasenameNoExtension}.out",

12. "args": [],

13. "stopAtEntry": false,

14. "cwd": "${workspaceFolder}",

15. "environment": [],

16. "externalConsole": true,

17. "MIMode": "lldb",

18. "preLaunchTask": "build c++",

19. "logging": {

20. "trace": true,

21. "traceResponse": true,

22. "engineLogging": true

23. }

24. }

25. ]

26. }

完成这三步C++开发环境就配置好了，接下来就可以编译，运行，调试C++程序了

[⇧⌘B]是编译程序，[⇧⌘R]是运行程序，如果安装了插件『Code Runner』可以直接运行程序

如果需要调试，那就按F5，进入调试模式即可

好了，这样就可以顺利地在vscode上进行C++开发啦，赶快行动起来吧~