题
package demo01;
public class demo001 {
public static void main(String[] args) {
// TODO Auto-generated method stub
int a = 1;
int b = 2;
int c;
// 进行数据交换
c = a;
a = b;
b = c;
System.out.println("交换后的 a:" + a + ",b:" + b);
}
}