题解 | #交换变量值#
交换变量值
https://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);
// 先执行b=a 把a的值赋给b
// 再执行a = a+b-(b=a)即a+b-a=b 把初始b赋给a
System.out.println(a+" "+b);
}
}
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