foo.c: In function 'main':
foo.c:6:18: error: expected ')' before '\U0000ff1a'
    6 |     printf("输入" ：\ m)
      |           ~      ^~~
      |                  )
foo.c:6:21: error: stray '\' in program
    6 |     printf("输入" ：\ m)
      |                     ^
foo.c:6:25: error: expected ';' before 'scanf'
    6 |     printf("输入" ：\ m)
      |                         ^
      |                         ;
    7 |         scanf("%d", &m);
      |         ~~~~~            
foo.c:8:10: error: expected ';' before 'while'
    8 |     i = 2
      |          ^
      |          ;
    9 |         while (i < m)
      |         ~~~~~
foo.c:12:36: error: stray '\' in program
   12 |                 printf(% d不是素数 \ n, m);
      |                                    ^
foo.c:5:12: warning: variable 'i' set but not used [-Wunused-but-set-variable]
    5 |     int m, i;
      |            ^
foo.c:5:9: warning: unused variable 'm' [-Wunused-variable]
    5 |     int m, i;
      |         ^
foo.c: At top level:
foo.c:18:8: error: expected declaration specifiers or '...' before '%' token
   18 | printf(% d不是素数 \n, m);}
      |        ^
foo.c:18:20: error: stray '\' in program
   18 | printf(% d不是素数 \n, m);}
      |                    ^
foo.c:18:24: error: unknown type name 'm'
   18 | printf(% d不是素数 \n, m);}
      |                        ^
foo.c:18:27: error: expected identifier or '(' before '}' token
   18 | printf(% d不是素数 \n, m);}
      |                           ^
foo.c:19:5: error: expected identifier or '(' before 'return'
   19 |     return 0
      |     ^~~~~~

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