So let me show you how to write a program that simulates these rules. So, back to our program here, we start by defining a boolean variable is underline hot. We set this to true.

So let me show you how to write a program that simulates these rules.所以，所以，回到我们的程序， 我们首先定义一个布尔变量 is underline hot。 我们将其设置为 true。

Next, we add an if statement, so if, here we need to add a condition, in this case we're going to use our boolean variable. So, is underline hot. So if this values to true.

we need to add a condition, in this case we're going to use our boolean variable.所以，所以，下划线很火。 所以如果这个值为真。