在本例中,我用下面所示的代码使这条直线围绕动画的中心旋转。
In this case, I rotate the line around the center of the movie with the code shown below.
为什么呢?因为该代码块指定了在测试正确的情况下,我将进行的一系列操作。
Why? Because that block identifies a set of things that I'm going to do if the test is true.
在本文中,我通过示例代码解释了概念。
Throughout the article, I provided sample code to illustrate concepts.
I'm not going to do it for you, but what would I think about doing when I change the code?
要改变代码应该做什么呢?,我不会帮你们做这些,但是我在改编代码的时候会想什么呢?
And notice because I have just one line of code inside of each of these branches, what have I clearly omitted?
请注意因为我在每个分支中只有一行代码,显然地我省略了什么?
And in the process of tidying it up and making it prettier, I'll often by accident find the bug.
让我的程序更漂亮些,在这个清理美化代码的过程中,我常常无意中发现我的错误。
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