exam10-9.cpp

很好的C程序设计教程

/*文件名:exam10_9.cpp*/
#include <stdio.h>
main()
{
	union untype
	{
		short int i;
		float f;
		char c;
	};
	union untype un1={2};   /*共用体变量初始化*/
	un1.f=1.34567;			/*给成员f赋值*/
	un1.c='A';				/*给成员c赋值*/
	printf("%d,%d,%d\n",sizeof(un1.i),sizeof(un1.f),sizeof(un1.c));
	printf("%d\n",sizeof(un1));
}