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() { int ch=0; while((ch=getchar())!=EOF) { if('A'<=ch&&ch<='Z') printf("%c\n",ch+32); if('a'<=ch&&ch<='z')
printf("%c\n",ch-32);
getchar();
}
return 0;
}