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