c 语言大小写字母转换#include<>chardaxiezhuanxiaoxie(char*c)// 大写字母转换为小写字母函数定义if(*c<='Z'&&*c>='A')*c-='A'-'a';return*c;charxiaoxiezhuandaxie(char*c)// 小写字母转换为大写字母函数定义if(*c<='z'&&*c>='a')*c-='a'-'A';return*c;main()chars[100],*p=s,*q=s;gets(s);printf("大写字母转小写字母\n");while(*p)*p=daxiezhuanxiaoxie(p);putchar(*p);p++;printf("\n");printf("小写字母转大写字母\n");while(*q)*p=xiaoxiezhuandaxie(q);putchar(*q);q++;printf("\n");
