[java]
int x = 3;
int y = 5;
x = x ^ y;
y = x ^ y;
x = x ^ y;
2. 使用异或
[
html]
int x = 3;
int y = 5;
x = x + y;
y = x - y;
x = x - y;
3. 只要在int范围内都没有问题
[java]
int x = Integer.MAX_VALUE;
int y = Integer.MAX_VALUE - 15;
x = x + y;
y = x - y;
x = x - y;