题解 | #大小写转换#
大小写转换
https://www.nowcoder.com/practice/4e089ee8966a4ed4b306f64e68d45264
#include<stdio.h>
int main()
{
char ch = 0;
while((ch = getchar()) != EOF)//用while（1）也能实现，只不过不能ctrl+z手动结束
{
putchar(ch + 32);
putchar('\n');
while(getchar() != '\n');
}
return 0;
}