At Northwestern University, researchers recently concluded that well before babies start to speak, they recognize words and can link them to the things they represent.
VOA: standard.2010.05.05
Well, if we actually want to represent something like the number 7, well in binary, not actually in decimal like this.
如果你表达,类似于7的数字,在二进制中,它和十进制可不太一样。
Characters are simple. Suppose you want to represent sets of strings, well you basically just generalize the hash function.
字母是是很简单的,如果你想表示一组字符串,基本上你要做的就是归纳出哈希函数。
Apart from the severe human rights violations, Plant says,the profits pocketed by traffickers represent lost tax revenues to the States, as well as lost earnings stolen from the victims of forced labor and trafficking.
VOA: standard.2009.08.21
And response back is "Well, yes, we had people at the table, but they were Oxford educated and they didn't represent the rank-and-file people in my culture."
而他们得到的回应是,“是的,的确如此,可是那些人读的可是牛津大学,他们并不能代表,我们的普通民众“
But we know already from week zero that computers ultimately represent all information with numbers, and if they want to represent letters inside memory, well what do they do or what do they use?
但是自从上周我们已经知道,计算机最终是用数字来表示所有的,信息,如果它们要描绘,在内存中的字母,它们该怎么做,用什么方式呢?
Well the first idea is that these numbers represent utiles or utilities.
首先这些数字代表了效用或者说功利
Well, if you're implementing a computer that needs to represent information now all you need is something like electricity which can be on or off, on or off.
好吧,如果你正用一个电脑,来表现表达传递信息的功能,你就需要,像电开关一样的物体。
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。
应用推荐