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So when you talk to class four, he says,then it is difficult to teach the little kids in class one.
VOA: standard.2010.02.25
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When I try and evaluate that expression of greater than, is going to go into the class to say greater than is a comp method.
这个大于的操作符的时候,是到类的定义里去识别，大于是一个比较的方法,那么让我在这里说仔细一点吧。
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Right that's a specific name, and what it basically says is, when I call the class instance.
好这是个特定的应用，它的意思也就是，让我调用一个类的实例。
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So, the example that we took on Monday and that we ended with when we ended class, was looking at the 1 s orbital for hydrogen atom, and what we could do is we could graph the radial probability as a function of radius here.
周一我们,最后讲到了，粒子是氢原子１ｓ轨道，我们可以画出,这幅径向概率分布曲线。
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I'm going to give the last class a problem which is pretty interesting, which is what happens to you when you have an elevator.
我将讲解最后一个例题,非常有趣,也就是当你在电梯里的情形
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And in fact, this is a theme we're going to return to next class when we talk about vision because the same thing is going to happen there.
实际上,我们下节课讲视觉的时候,还会再来讲讲这个主题,因为自上而下加工也会出现在视觉活动中
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And when we put together the class, this is precisely what we thought about: how you affect change and those people whom you change will hopefully influence others and so on and so on.
我们在组织课堂时，心中就有这个想法：,你如何影响改变，那些被你改变的人,希望能进一步影响其他人等等。
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By the way, when we do grading for the class, what we're going to do is to spread the grading around the teaching fellows so that everybody's work is going to get graded evenly by all the teaching fellows.
还有,等到课程评分的时候,我们就会,让几位助教轮流来做,尽可能让每一位助教,都给大家的作业评分
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When I call the class definition, that is I call c point, I'm going to call it with a specific set of arguments.
来创建实例的时候，也就是调用c，point的时候，我会以一个特定的参数集来调用它,然后将要发生的就是init将会被应用。
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and he knew this the same way that we saw it in the last class, which is when we viewed the difference spectra coming out from the hydrogen, and we also did it for neon, but we saw in the hydrogen atom that it was very discreet energy levels that we could observe.
那就是,当我们看氢原子发出的光谱时，我们也看了氖气,但我们看到,氢原子能级是分立的，这些，在当时,已经被观察到了,他也都知道。
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For now the way to think about this is, cp2 when I call that class definition, it goes off and allocates a specific spot in memory that corresponds to that instance.
这个语句所做的，就是建立了，这个类型的实例cp1和，这个类型的特定版本,现在你们可以这么认为。
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So another way saying it again is, when I call the class definition, by default I'm going to look to see is there an init method there, and if there is, I'm going to use it.
当我调用类的定义，默认的是语言要去查看，是不是有个init的方法,如果有的话，程序就会调用它，按照惯例。
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If you look at the up left corner, Gabriel was a student here in this class two years ago, when we came and presented on the program and he is currently a student in the MAPP program.
看左上角，两年前，Gabriel修读这门课，在我们来推广硕士课程时,现在他正在我校读硕。
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