In exercise 2, you use the administrative console to alter the default destination of the selector.
在练习2中，您将使用管理控制台更改选择器的缺省目标。
Exercise 2: Altering and adding destinations
练习2：更改并添加目标
Exercise 2: When you are outside, practice looking at something very close, then gradually move your focus further and further away.
练习2：当你在室外的时候，练习注视距你非常近的东西，然后逐渐望向远处，然后越来越远。
Extend the program you wrote in Exercise 2 so that it also displays the balance after two years have elapsed, as shown in the following sample run.
扩展你在练习2中写的程序，使其能够显示2年以后的新余额，如下面这样。
Extend the program you wrote in Exercise 2 so that it also displays the balance after two years have elapsed, as shown in the following sample run.
扩展你在练习2中写的程序，使其能够显示2年以后的新余额，如下面这样。
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