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GUEST, unregistred user!
将键盘输入的字符中的大写字母转换成小写,其它不变
# include<stdio.h>
# define bwer(x)('A'<x&&___)(x=x-'A'+'a'):X
void main()
{
int c;
while ((c=getchar()!=eof)
putchar(_____);
}
# include<stdio.h>
# define bwer(x)('A'<x&&___)(x=x-'A'+'a'):X
void main()
{
int c;
while ((c=getchar()!=eof)
putchar(_____);
}