2. The while loop (like the for loop introduced later in this article) supports three additional statements while 循环（与本文后面介绍的 for 循环一样）支持三种附加语句
3. But even with the simplicity of this loop construct, you can build any complex loop. 然而仅仅使用简单的循环结构，您也能构建任意复杂的循环。
4. Because the hint is before the loop body, this code leaves your hint active for every iteration of the loop, but it only has to use one cycle. 由于提示位于循环体之前，因此这段代码将使提示对于循环的每次迭代都保持活动状态，不过它只使用了一个周期。
5. In cases where a break combination is part of an alternative or a loop, then only the alternative or loop is exited. 在这种情况下，跳转组合是变体或者循环的一部分，然后只是变体或循环被退出。
