获取汉字汉语拼音首字母，精选ios编程学习源码，很好的参考资料。-The first letter of Chinese phonetic acquisition Chinese characters, selection of learning IOS programming source code, a good reference.

显示城市采集演示，精选ios编程学习源码，很好的参考资料。-Display City acquisition demonstration, selection of learning IOS programming source code, a good reference.

采集工具，精选ios编程学习源码，很好的参考资料。-Acquisition tool, select learning IOS programming source code, a good reference.