#include <conio.h>
#include <stdio.h>
main()
{
char ch;
printf("ch:");
scanf("%c",&ch);
ch = ch(ch>='a'&&ch<='z')?(ch-32):ch;
printf("ch->%c",ch);
getch();
}

//为什么编译后老提示有错误
// ch = ch(ch>='a'&&ch<='z')?(ch-32):ch;
//这一句