标签:运算 a+b 方式 == 变量 异或 style span 相加
c = a;
a = b;
b = c;
a = a ^ b;
b = a ^ b; //a == a ^ b ^ b
a = a ^ b; //b == a ^ b ^ a
a = a + b;
b = a - b;
a = a - b;
b = (a+b) - (a=b);
标签:运算 a+b 方式 == 变量 异或 style span 相加
原文地址:https://www.cnblogs.com/ayeex/p/9515331.html