#include <stdio.h>
int main()
{
char ch;
ch=getchar(); //输入一个小写字母
while(ch != '0') //循环跳出的条件是输入字符'0'
{
if(ch>='a' && ch<='z') //如果输入的字符为小写字母字符
{
ch-=32; //大写字母=小写字母-32
printf("%c\n\n",ch); //输出小写字母对应的大写字母
}
ch=getchar(); //输入一个小写字母
}
printf("\n");
return 0;
}
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