.vscode文件夾下創建文件c_cpp_properties.json
ctrl+shift+p,輸入C/C++: Edit Configurations (JSON),回車
不同平台文件內容不同，主要是修改Standard版本，搞了半天才搞定。
{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}/**"
],
"defines": [],
"compilerPath": "/usr/bin/gcc", //編譯器路徑
"cStandard": "c11",
"cppStandard": "c++17",
"intelliSenseMode": "clang-x64"
}
],
"version": 4
}