Pycharm里面的TODO功能有什么作用？

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When working on a project, it's often needed to create a list of tasks for yourself or your team mates. While usually these tasks are described in an issue tracker like YouTrack, some tasks are either too small or too code-specific to describe in an issue tracker. In such a case, adding TODO comments in source code makes sense.

具体来说，当你在写代码时，突然意识到你之前的代码有一个潜在的小bug，但不重要，一般人通常的做法是：

• 立刻去修复bug，然后当你返回你现在的工作时，你的思路就被打断了
• 把bug记在脑子里，继续写你的代码，很快这个bug就被你忘了
• 在bug的地方打一个注释，继续写代码，很快这个bug又被你忘了，很久以后，当你翻之前的代码时你才发现这里有个注释
• ……

明智的做法是：

在bug旁边写一个“#todo: computer will explode while running the program for 24+ hours”，然后继续写代码。

为了防止你今后忘掉这个bug，pycharm会在3个地方提示你：

另外，在多人协作的项目中，todo还可以用来区分“谁要去修复这个bug”。PyCharm官方文档介绍如下：

create several filters, which you will use to show the TODO items, say, for each of the developers, and not for your good self. For this purpose, in the Filters section, click , and specify the filter names, for example, For John, For Bob, and not for me. Associate these filters with the patterns:

Now, in the source code, create TODO items: in the line of code, where you want to add a note, press Ctrl+Slash, or Ctrl+Shift+Slash, and type TODO that matches one of the patterns, followed by some meaningful description: