key things of ARC
2014-04-26 21:32
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【key things of ARC】
1、使用原则。
2、__weak变量的使用问题
3、__autoreleasing的使用问题
4、block中易造成的强引用环问题。
5、栈变量被初始化为nil。
6、在ARC下，不加修饰符的变量默认是strong。
1、使用原则。
2、__weak变量的使用问题
3、__autoreleasing的使用问题
4、block中易造成的强引用环问题。
5、栈变量被初始化为nil。
6、在ARC下，不加修饰符的变量默认是strong。
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