View Compilation Error

0_0_21520302_17782.c: In function 'main':
0_0_21520302_17782.c:5:19: error: expected expression before '/' token
     char key[30]; // 密钥
                   ^
0_0_21520302_17782.c:5:19: error: stray '\303' in program
0_0_21520302_17782.c:5:19: error: stray '\334' in program
0_0_21520302_17782.c:5:19: error: stray '\324' in program
0_0_21520302_17782.c:5:19: error: stray '\277' in program
0_0_21520302_17782.c:12:25: error: 'c' undeclared (first use in this function)
     while (scanf("%c", &c) != EOF)
                         ^
0_0_21520302_17782.c:12:25: note: each undeclared identifier is reported only once for each function it appears in
0_0_21520302_17782.c:16:39: error: expected expression before '/' token
             if (c >= 'a' && c <= 'z') // 小写字母
                                       ^
0_0_21520302_17782.c:16:39: error: stray '\320' in program
0_0_21520302_17782.c:16:39: error: stray '\241' in program
0_0_21520302_17782.c:16:39: error: stray '\320' in program
0_0_21520302_17782.c:16:39: error: stray '\264' in program
0_0_21520302_17782.c:16:39: error: stray '\327' in program
0_0_21520302_17782.c:16:39: error: stray '\326' in program
0_0_21520302_17782.c:16:39: error: stray '\304' in program
0_0_21520302_17782.c:16:39: error: stray '\270' in program
0_0_21520302_17782.c:19:50: error: expected expression before '/' token
                 printf("%c", key[c - 'A'] - 32); // 大写字母
                                                  ^
0_0_21520302_17782.c:19:50: error: stray '\264' in program
0_0_21520302_17782.c:19:50: error: stray '\363' in program
0_0_21520302_17782.c:19:50: error: stray '\320' in program
0_0_21520302_17782.c:19:50: error: stray '\264' in program
0_0_21520302_17782.c:19:50: error: stray '\327' in program
0_0_21520302_17782.c:19:50: error: stray '\326' in program
0_0_21520302_17782.c:19:50: error: stray '\304' in program
0_0_21520302_17782.c:19:50: error: stray '\270' in program
0_0_21520302_17782.c:27:5: error: expected expression before '/' token
     // gets(message);
     ^
0_0_21520302_17782.c:28:5: error: expected expression before '/' token
     // ls = strlen(message);
     ^
0_0_21520302_17782.c:29:5: error: expected expression before '/' token
     // for(i=0;i<ls;i++)
     ^
0_0_21520302_17782.c:33:5: error: stray '\320' in program
     //         if(message[i]>='a' && message[i]<='z')  // 小写字母
     ^
0_0_21520302_17782.c:33:5: error: stray '\241' in program
0_0_21520302_17782.c:33:5: error: stray '\320' in program
0_0_21520302_17782.c:33:5: error: stray '\264' in program
0_0_21520302_17782.c:33:5: error: stray '\327' in program
0_0_21520302_17782.c:33:5: error: stray '\326' in program
0_0_21520302_17782.c:33:5: error: stray '\304' in program
0_0_21520302_17782.c:33:5: error: stray '\270' in program
0_0_21520302_17782.c:36:5: error: stray '\264' in program
     //             printf("%c",key[message[i] - 'A']-32);  // 大写字母
     ^
0_0_21520302_17782.c:36:5: error: stray '\363' in program
0_0_21520302_17782.c:36:5: error: stray '\320' in program
0_0_21520302_17782.c:36:5: error: stray '\264' in program
0_0_21520302_17782.c:36:5: error: stray '\327' in program
0_0_21520302_17782.c:36:5: error: stray '\326' in program
0_0_21520302_17782.c:36:5: error: stray '\304' in program
0_0_21520302_17782.c:36:5: error: stray '\270' in program