题解 | #字母大小写转换#
字母大小写转换
https://www.nowcoder.com/practice/850ebd30a2a34cfc87199da3fc15786a
#include <stdio.h>
int main()
{
int ch = 0;
while (~scanf("%c\n", &ch))
{
if(ch >= 'A' && ch <= 'Z')
{
printf("%c\n",ch + 32);
}
else if(ch >= 'a' && ch <= 'z')
{
printf("%c\n",ch-32);
}
}
return 0;
}