2.3、建议:关于变量名

Commentary

Good.Not clear; what is being inserted? what does “at” signify?Good.Good,

because it removes object referred to in argument.Not clear; what is being

removed?

Spell them out, even if they’re long:

Commentary

Good.

Not clear.

Good.

Not clear.

说明:变量名应该以小写字母开头,并使用驼峰格式 。尽量为变量起一个􏰁述

性的名字 。不要担心 浪费列宽,因为让新的代码阅读者立即理解你的代码更

重要。示例:

错误的命名: int w;int nerr;int nCompConns;tix = [[NSMutableArray alloc] init];

obj = [someObject object];

p = [network port];

正确的命名: int numErrors;int numCompletedConnections;tickets =

[[NSMutableArray alloc] init]; userInfo = [someObject object];

port = [network port];