c_3_7.c

c_tan:谭浩强编著c语言程序设计一书的c程序源文件

#include <stdio.h>
main()
{
	char c1,c2;
	c1 = 'a';
	c2 = 'b';
	c1 = c1 - 32;
	c2 = c2 - 32;
	printf("%c   %c",c1,c2);
}