Is there a way to make paperclip attachments private? As in only where I explicitly want a user to be able to access a file, can the user access t开发者_JAVA技巧he file.
苹果6备忘录误删恢复方法介绍 方法一： 1、在删除备忘录之后不要退出当前页面，左右摇晃手机会弹出撤销刚才删除的备忘录，点击“撤销”即可恢复
I\'m trying to count the frequency of numbers from 1 to 100 on different fields of a table. Let\'s say I have the table \"Results\" with the following data:
I hope I am not missing something very simple here.I have done a Google search(es) and searched through Stack Overflow.
How do I convert this: [True, True, False, True, True, False, True] Into this: \'AB DE G\' Note: C and F are missing in the output because the corresponding items in the input list are开发者_运维
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Is there any limit on the size of data that can be received by TCP client. With TCP socket communication, server is send开发者_开发百科ing more data but the client is only getting 4K and stopping.I\'m
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