交换两个变量的值 许一世繁Hua 2019-11-14 413 阅读1分钟 方法一：借助第三方变量 let a = 1 let b = 4 let c = a a = b b = c 方法二：自身融合、拆分 let a = 1 let b = 4 a = a + b b = a - b a = a - b 方法三：通过位运算符 let a = 1 let b = 4 a = a ^ b b = a ^ b a = a ^ b
