BMPicker
BMPicker 是一款自定义的时间选选择器，支持年，年月，年月日，年月日时，年月日时分，年月日时分秒
效果图
CocoaPods
CocoaPods is the recommended way to add BMPicker to your project. Add a pod entry for BMScan to your Podfile.
pod 'BMPicker', '~> 0.0.1'Second, install BMPicker into your project:
pod install使用说明
Contacts
Sina : @梁大红
blog : @idhong
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License
BMScan is released under the MIT license.