1. 说明 使用clang++10.1编译报错: /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/crt1.o: in function `_start': (.text+0x24): undefined reference to `main' clang-10: error: linker command failed with exit code 1 (use -v to see invocatio…