Turns out with a Boolean expression, you don't have use the equality operator equals equals, you can just say what you mean.

结果用一个bool表达式，你不需要使用等号操作符“==“了，你只要说出你的意思。

哈佛公开课 - 计算机科学课程节选

And in Python the expression is, operand, operator, operand, when we're doing simple expressions like this, and if I give it to the interpreter, it gives me back exactly what you'd expect, which is that value. OK?

在Python中表达式就是，运算对象，操作符，运算对象，当我们处理这样的简单表达式的时候，我把表达式传给处理器，处理器给我返回了我想要的结果，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

Now Josh, the I'm-going-to-be-a-reporter-someday crew member, and Michael, the I-really-want-to-be-a-rock-star prompter operator, were around me, wearing the same expression you'd have after witnessing a car wreck.

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