目录简介背景问题描述解决方案1. 定义通用函数接口2. 包装每个函数3. 创建函数映射表4. 动态调用函数5. 示例调用优点总结简介
I have a MKMapView that has a pin than when pressed shows the annotation开发者_Python百科\'s title and subtitle.
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