src.c: In function 'main':
src.c:17:6: error: stray '\357' in program
case 2：
^
src.c:17:6: error: stray '\274' in program
src.c:17:6: error: stray '\232' in program
src.c:18:10: error: expected ':' or '...' before 'case'
case 1:
^