[开发工具]vscode报错：undefined reference to `WinMain@16‘collect2.exe: error: ld returned 1 exit status

运行代码出现c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../libmingw32.a(main.o):(.text.startup+0xc0): undefined reference to `WinMain@16'
collect2.exe: error: ld returned 1 exit status

vscode并不是run代码，就会自动保存，而是要先保存再运行，记录一下。