union.cc

来自「资深C++讲师授课代码」· CC 代码 · 共 16 行

#include <iostream>
using namespace std;

int main()
{
	union{
		int a;
		int b;
	};
	a = 10;
	cout << "b=" << b << endl;
	b = 20;
	cout << "a=" << a << endl;
}