on 子句中的过滤器能够包含复杂查询或者简单表达式。
The filters in the on clause can contain complex queries or simple expressions.
本文提出了预示激光反射镜光学损耗的简单表达式。
In this Paper simple expressions are reported for predicting the optical losses of laser mirrors.
实现一个简易计算器,计算简单表达式字符串的值。
Implement a basic calculator to evaluate a simple expression string.
It's a very important point, if you see the very simple math that I'm showing up here.
这一点要特别注意,看看这个简单的数学表达式。
All right? And if you want to do other things, whoops, sorry-- and add them together, we will get out, again, a concatenation of that string. And these will, we'll let you work through the variations, but these are the simple expressions we can use.
对不对?如果你想要进行一些别的操作,哦,对不起-是加到一块,然后结果值也是,两个字符串的链接,这些会,我们会让大家慢慢学习变量,但是这些是我们能用的最简单的表达式。
Which is, and we're going to do some examples of this, initially we just typed in expressions Python into the interpreter; that is,directly into Python And as I suggested last time, the interpreter is actually a program inside of the machine that is basically following the rules we're describing here to deduce the value and print it up.
也就是,我们将会对这一点讲解一些例子,一开始我们只是简单的把表达式输入,到解释器里面去,也就是直接传给,我上次跟大家讲过,解释器实际上是,机器内置的,按照我们描述的规则,来推算出结果值并把值显示出来的一个东西。
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