它们做的基本上是同一件事：测试一个条件，如果该条件为真，则继续执行提供的代码块。

Fundamentally, each of these does exactly the same thing: it tests a condition, and if true, continues to execute the block of code provided.

youdao

它们做的基本上是同一件事：测试一个条件，如果该条件为真，则继续执行提供的代码块。

Fundamentally, each of these does exactly the same thing: it tests a condition, and if true, continues to execute the block of code provided.

youdao