题解 | #交换变量值#
交换变量值
http://www.nowcoder.com/practice/bd243c9bef70492f91959cc5556546a8
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int a = scanner.nextInt();
int b = scanner.nextInt();
a=(a+b-(b=a)); //这是核心思想，把a转换成b了。
//write your code here.......
System.out.println(a+" "+b);
}
}
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int a = scanner.nextInt();
int b = scanner.nextInt();
a=(a+b-(b=a)); //这是核心思想，把a转换成b了。
//write your code here.......
System.out.println(a+" "+b);
}
}
，再说不用上高数吗？