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