题目

IMUT 李文静《程序设计基础》题目集3-结构化程序设计技术

分析

搞清楚大小写字母的ASCII值，问题就迎刃而解

题解

#include<stdio.h>int main(void){char word=0;//printf("%d %d\n",'a','A');//printf("%d %d\n",'z','Z');for(;(word=getchar())!='\n';){if('A'<=word&&word<'Z')word=word+1+32;else if(word=='Z')word=word-25+32;else if('a'<=word&&word<'z')word=word+1-32;else if(word=='z')word=word-25-32;printf("%c",word);}printf("\n");return 0;}