目录前言一、基础篇：传统for循环1.1 标准语法结构1.2 典型应用场景二、进阶篇：增强型for循环2.1 语法糖的本质2.2 适用场景分析2.3 注意事项三、函数式编程：Stream API的forEach3.1 Lambda表达式遍历3.2 带索引的遍
I have a NSMutableArray I get by loading a plist into it. The date field comes in as a string and i want to change it into a nsdate. I can change an nsstring into an nsdate.
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