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A computer mouse is the device that moves the pointer,or cursor, on a computer screen.
VOA: special.2010.03.28
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Well, it turns out on most computers an address of the location and memory, aka a pointer, is itself 32 bits.
好的，它是一个计算机内存地址,或者说一个指针，占32位。
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Right? I've allocated a variable, it happens to be a pointer; it's still a variable, who know what's in it, right?
对不？我分配了一个变量，它碰巧是一个指针，它还是一个变量，谁知道它里面是什么？
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Ellington made five of his first six shots, including a three-pointer before ending the night with 20 points.
VOA: standard.2009.04.05
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Or another way of thinking about it, is remember I said when I call that class definition it creates an instance, that's a pointer to some spot in memory that's got some local information around it.
也就是一个指向，内存中某处的指针,这个地方存有一些,这个实例的信息，浅意义的相等也就是说,看看这两个东西是不是。
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In the late semifinal, North Carolina took an 8-6 lead on a three-pointer from Wayne Ellington three minutes into the game and never looked back.
VOA: standard.2009.04.05
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Also, what's the energy per photon of this red laser pointer, and then it's also worth trying a calculation dealing with intensity. So let's also try calculating the numbers of photons that would be emitted by this laser pointer, if, for example, we were to use it for 60 seconds and this were a one milliwatt laser.
同样，红色激光笔的,每个光子能量是多少，这也值得用处理强度的方法计算一下,让我们也计算一下,有多少光子会从这个激光笔射出，举个例子，如果我们使用它持续60秒,这里会有一毫瓦的激光。
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Number one, the basic structure is that you have a pointer and it points over to a pointee, but the pointer and pointee are separate and the common error is to set up a pointer but to forget to give it a pointee.
第一，基本结构是，你有一个,指向数据的指针，但是那个指针和数据,是分开的，通常错误是声明了一个指针,但是没有指向一个数据。
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That statement says, get the value of x, which is this link, and give z a pointer to the same place.
这个声明的意思是，取得x的值，也就是连接指向的值，然后给z赋予一个指向同样位置的指针。
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And when I create a binding, x I'm taking a variable name, in this case x, stored somewhere in a table, and I'm creating a link or a pointer from that name to that value.
当我创建一个绑定的时候，我有一个变量的名字，在这个例子中是，存在一个表中的某处，然后创建一个连接,或者指针从这个名字指向目标值。
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Yeah, a pointer to this chunk of memory.
是的，一个指向这块内存的指针。
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Right now it's empty, actually it's not quite empty, it has a pointer back to the class.
当我调用了这个类的，定义声明的时候，它在内存中的特定点。
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All right so I want first a pointer.
好的，首先我需要一个指针。
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init Init creates a pointer to the instance.
然后这个方法调用了。
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Let's just assume that s1 is a pointer and as an arrow suggests it's pointing at this byte here.
我们假设s1是一个指针,就像箭头所表示的，指向这个字节。
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It says, if I want to print out something I built in Cartesian form up here, says, again, I'm going to pass it in a pointer to the instance, that self thing, and then I'm going to return a string that I combine together with an open self and close paren, a comma in the middle, and getting the x-value and the y-value and converting them into strings before I put the whole thing together.
这不仅仅是个列表,它是怎么来做的？,流程是：如果我想要返回,一些已经在笛卡尔模式下建好的值，好，再说一遍，我首先要传入一个,指向实例的指针,也就是，然后我会返回一个,由开括号，闭括号,中间的一个逗号,以及提前转换为字符串格式的。
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A star is a preview, is referring to what's called a pointer, similar in spirit but more dangerous than references in Java for those familiar, but we'll soon focus on these next week.
是一个预览，它叫做,一个指针，精神上类似的,但是在Java中提及这些熟悉的是更危险的,但是我将在下周集中研究这个。
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We'll make this available because, frankly, you could Google it and now it's pretty moot because Apple has plugged this particular hole but there's all sorts of other bugs still, but it all boils down to one of the topics today, which is going to be that of this thing called a pointer.
我们将这个变得可用的，因为，坦白讲，你可以Google它，现在它是毫无意义的,因为苹果填补了这个漏洞,但是这里还有各种各样的其它的bug，这也是今天,的一个主题，那就是,被叫做指针的东西。
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A star is something called a pointer so it turns out a string is not quite what I'm describing it to be here.
就是所谓的指针,所以string并不完全是我在这儿描述的这样。
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We have a pointer to the location in memory that contains the actual value, which itself might be a bunch of pointers, and we have a pointer to the actual-- sorry, a pointer the value and we have a pointer to the next element in the list. All right?
包含实际值的地址,可能实际值,也是一系列指针,这里还有指向实际，抱歉，指向下一个元素的指针,我们来整理下？
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int No. Even though the key word has changed from char to int, the * is the same and the fact that I've got a * there is saying this is a pointer to an int or a pointer to a char pointers are always the same size on a computer.
不，即使即使关键字从char变成了，指针的大小还是一样的,我用*表示这是一个int型指针,而不是char型指针，在同一台机子上,它们的大小是一样的。
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So it's an address, it's a pointer, address pointer, synonyms for now, so it's the address of a char so this makes sense because s1 is also the address of a char so if I wanted to make a copy of that address this is absolutely the right syntax.
是一个地址，是一个指针，地址指针，也就是，char型数据的地址,这是有意义的，因为s1也是一个char型数据的地址,所以如果我想要复制那个地址,这个绝对是正确的语法。
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Now that's changing the more years that pass the more of you have 64-bit computers and the more servers have many, many gigabytes of RAM and so you need actually 64-bits, but for now let's assume a common system whereby a pointer just by definition of the homework is 32 bits.
现在计算机也在改变，也有更多的人,使用64位的计算机，更多的服务器有很多，很多G的内存，那样你就需要64位的，现在我们假设通常的系统中,根据家庭作业所定义的，一个指针为32位。
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And now, if I'm touching mouse pointer, we saw that Boolean expression before, play sound meow, wait a couple of seconds, and then just keep checking.
现在，如果我们碰下鼠标指针，起初我们看到一个布尔表达式，播放猫叫的声音，等几秒钟，然后如刚才那样做检测。
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Well, I know how big a pointer is.
好的，我知道一个指针有多大。
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Well, int is almost always 32 bits at least so far as we've seen so, in fact, any time I draw a pointer hence force I'm just going to draw a square as well because they are, in fact, the same size usually in memory.
嗯，int几乎总是32位的,至少我们至今所看到的是这样的，每次我用一个正方形表示一个指针,因为实际上他们，在内存中的大小是一样的。
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When you declare a pointer yourself manually, you do say char * the variable name because recall that's the same thing that we did earlier but we called it instead string.
当你手动声明一个指针是，你可以说char，*，变量名字,因为那是我早些时候做的事情,但是我们叫它为字符串。
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I'm going to call it x and how do I make a pointer to an int?
我把它叫做x，我怎样声明一个int型指针？
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y >> Yeah. We allocated the pointer y but we never set it to point to a pointee.
>，是的，我们分配了指针y，但是,没有指向任何数据。
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