第二次作业（1）

package work;

public class text {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int a = 100;
		int b = 200;
		int tmp;
		//进行数据交换
		tmp = a;
		a = b;
		b = tmp;
		System.out.println("交换后的a:"+ a + ",b:" + b);
		

	}

}