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设定一个时间（这个时间是服务器获取的） 如何使用闹钟 在时间到时 添加一个提醒功能 提醒用户该进行一些操作了
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Set when the program is opened. Use local notifications. The new version of iOS10 is simpler and more direct with a calendar notification, and you can also launch the program.
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Set when the program is opened.
Use local notifications. The new version of iOS10 is simpler and more direct with a calendar notification, and you can also launch the program.