And I would be able to simply bury away the details of how those other instances are created from how I want to use them by simply calling methods on the classes.
也就是一些线段的组合,我还可以把怎么实现那些,实例的细节包装起来,把它和调用实例分开来,我们下次还会接着讲这个。
And then, I had all these dots moving around this beautiful picture of this map, which represented downtown St. Louis and then later represented New York City, which I was amazed by.
接着我让这些点在这张,漂亮的地图上动来动去,让它们展现出圣路易斯市中心的景象,之后表示出了纽约城,这让我很惊奇。
This is just a little inelegant and so one of the things we'll introduce early on is this idea of abstraction or design whereby if you wanna represent the ideas of 0 and 1, true or false, well, let's give them a synonym like true or false.
这么说有点粗野,我要接着讲的是这种抽象的思想,或者用这个来描绘设计出,真和假的思想,我们可以给真假各指定一个同义词。
Later on we could do this with a proton.
接着我们可以用质子来做。
And we will then get over to here, where he's sitting on the tonic chord, and we want to see how long he's going to hold this tonic chord. Okay?
接着再到这里来,他停在了主音和弦上,然后我们想看看他会在主音和弦上保持多久,好吧?
But then I ask them to think, and in the book I ask the readers to think: Well, have you given a cost of an expensive pair of shoes to save the life of one of the around 9 million children who are dying from poverty related causes each year around the world?
但是,接着我让他们思考,在书中,我让读者思考这样一个问题:,你有没有捐出过买一双鞋的钱,来拯救900万儿童中的一个生命?,他可能正因为贫困导致的种种问题,而生命垂危,每年世界上都会有这样的儿童?
So let's go ahead and compile this gcc math1.c.
我们接着通过键入“gcc,math1,c“来编译这个文件。
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