P3102 [USACO14FEB]秘密代码Secret Code 题目描述 Farmer John has secret message that he wants to hide from his cows; the message is a string of length at least 2 containing only the characters A..Z. To encrypt his message, FJ applies a sequence of "operations&…
P3102 [USACO14FEB]秘密代码Secret Code 题目描述 Farmer John has secret message that he wants to hide from his cows; the message is a string of length at least 2 containing only the characters A..Z. To encrypt his message, FJ applies a sequence of "operations&…
P3102 [USACO14FEB]秘密代码Secret Code 题目描述 Farmer John has secret message that he wants to hide from his cows; the message is a string of length at least 2 containing only the characters A..Z. To encrypt his message, FJ applies a sequence of "operations&…
Code refactoring 是什么 在不改变软件的外部行为的条件下,通过修改代码改变软件内部结构,将效率低下和过于复杂的代码转换为更高效.更简单和更简单的代码. 怎样执行Code refactoring 1.重命名 例子:命名语意不明. //重构前 let show = true; function name(){} //重构后 let isShow=true; function getName(){} 2.提取 例子:不同函数名,相同功能函数 //重构前 function sayHell…