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objective-c - IOS 实现同步操作+超时机制， 求解 如何优化我的解决方案[定时器 被重复创建]
曾经蜡笔没有小新
2017-05-02 09:36:42
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我的问题 如图所示，还请大神帮我想想办法。 不一定非要用定时器，只是这里不知道怎么解决。
我不想重复开辟内存
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