最近有个需求，根据两个时间，计算两个时间之间相差多少个小时。 查了一下，网上有现成的工具类
Is there an obvious way to make a text input box that has rounded edges? I\'m not talking ab开发者_开发问答out setting a UITextField\'s borderStyle to UITextBorderStyleRoundedRect. That only gives me
Is there a way to automatically have each window change its name to the name of the last program you ran from that window?
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