使用中间变量交换两个变量的值
int a = 10 , b = 11 , m; m = a; a = b; b = m;
不使用中间变量交换两个变量的值
int a = 10;
int b = 11;
a = a + b;
b = a - b;
a = a - b;
使用中间变量交换两个变量的值
int a = 10 , b = 11 , m; m = a; a = b; b = m;
不使用中间变量交换两个变量的值
int a = 10;
int b = 11;
a = a + b;
b = a - b;
a = a - b;
转载于:https://www.cnblogs.com/xiaobaizhiqian/p/7612468.html