vscode新建cmake项目ctrl左键无法索引头文件

生成c_cpp_properties.json文件

• 打开命令面板ctrl+shift+p，输入[c/c++:]edit configuration(UI)或[c/c++:]edit configuration(JSON)即可生成；
• 添加includePath，例如：

{"configurations": [{"name": "Linux","includePath": ["${workspaceFolder}/**","/usr/include","/path/to/thirdparty/include"],"compilerPath": "/usr/bin/g++","cStandard": "c11","cppStandard": "c++17","intelliSenseMode": "gcc-x64"}],"version": 4
}