说明: 用来做词法分析 case '-':printf("$minus");read();break; case '=':printf("$equal");read();break; case '(':printf("$LParen ");read();break; case ')':printf("$RParen ");read();break; case '+':printf("$plus ");read();break; case '*':printf("$mult ");read();brea <liugeqiang2000> 上传 | 大小:6kb