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更正笔误“有点”为“优点” #21

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更正笔误“有点”为“优点” #21

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2 changes: 1 addition & 1 deletion 13.problem_solving.md
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Expand Up @@ -70,7 +70,7 @@

我们的第一版脚本已经能够工作了。然而，我们还可以对它作出一些改进，从而使它能够更好地在每一天都可以正常工作。我们将这一阶段称之为软件的*维护（Maintenance）*阶段。

我认为有一种颇为有用的改进是起用一种更好的文件命名机制——使用_时间_作为文件名，存储在以当前_日期_为名字的文件夹中，这一文件夹则照常存储在主备份目录下。这种机制的第一个有点在于你的备份会以分层的形式予以存储，从而使得它们能更易于管理。第二个优点是文件名能够更短。第三个优点在于由于只有当天进行了备份才会创建相应的目录，独立的目录能够帮助你快速地检查每天是否都进行了备份。
我认为有一种颇为有用的改进是起用一种更好的文件命名机制——使用_时间_作为文件名，存储在以当前_日期_为名字的文件夹中，这一文件夹则照常存储在主备份目录下。这种机制的第一个优点在于你的备份会以分层的形式予以存储，从而使得它们能更易于管理。第二个优点是文件名能够更短。第三个优点在于由于只有当天进行了备份才会创建相应的目录，独立的目录能够帮助你快速地检查每天是否都进行了备份。

保存为 `backup_ver2.py`：

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