Listing 20 shows how names can be created using a loop variable.

清单20演示了如何使用循环变量来创建名称。

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As for the loop count variable, the first set variable action sets it to 2.

至于循环计数变量，第一个变量设置操作将其设置为2。

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The latter approach also ties you to the name of the temporary loop variable used in the view, _course.

后一种方法还会将您与视图中使用的临时循环变量名称_ course联系起来。

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And we won't wait here one hundred seconds for it to finish, but we're using the loop, we're updating a variable, and we're formatting it in a nice way.

我们将不会再这里等待100秒来等它完成,但是我们使用循环，我们更新一个变量，我们把它排成一个漂亮的格式。

哈佛公开课 - 计算机科学课程节选

Initialization. A very common bug is to initialize a variable. Go through a loop, and then forget to reinitialize it when it needs to be reinitialized again.

忘记初始化,忘记初始化变量是一个很常见的错误,运行完一个循环之后,当需要再次初始化时。

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But notice unlike a for loop, if you want to declare a variable or increment or decrement to variable, you've got to do that yourself.

但请注意不像for循环，如果你想声明一个变量,或者变大或变小一个变量，你需要自己完成。

哈佛公开课 - 计算机科学课程节选