Because what you don't see in this file is any code a that actually says put a letter of the alphabet at the top left hand corner of the screen and then put the next character to the right in other words, I'm taking for granted at this moment in time that my computer knows how to print something to the screen.
就是这些你在本文件中看不到的一些代码,实现了将首字母,放在屏幕的左上角,然后把其他字母加在其右边,我想当然地认为,我的电脑知道如何打印相应信息到屏幕上。
All right, we're-- well actually, I should say that better, we first check to see, is x 0 greater than or equal to zero, if it's not, then we come down here and we print something out, otherwise we run through a little loop to get the answer, and then we check it and we spit something out.
然后我们运行一个小循环,好了,我们现在来看看,如果x≥0或者x<,我们看这儿,我们会输出一些内容,或者我们运行一个小循环来获取答案,然后我们检验一下,然后得到结果。
I'm actually just going to do something simple first, print the arguments to this function.
我实际上将要先做点简单的东西,打印函数的参数。
And this is something you could print out to look at.
你们可以把这部分打印出来看。
I don't have to go read what it printed out in the screen. This has returned a value that I can use. Because I could do a test to say, is this a return value? If it's not, I'll do something else with it. So the binding is still there, it simply doesn't print it out.
我不想读到屏幕中打印出来的这行字,程序返回过一个我能够使用的值,因为我可以做个小测试,来说明这是否是返回的值,如果不是,我可以做一些其它的事,而这个绑定依然在这儿,没有打印任何东西。
Print, assignment, certainly two obvious statements, they're commands to do something.
如Print,赋值,当然很明显的是两个声明了,他们是用来进行操作的一些命令。
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。
If I wanted to use print as a variable name, how do I get the system to decide gee, do I want print as a value for something, or do I want print as a command?
如果我把print当做一个变量名,我如何让系统来决定,我是要把print当做一个命令来用呢,还是要把它当做一个变量名来用呢?
We can put a list in the list again, as we've seen before. So let's put the list containing the string a, and I'll print out so now we see something pretty interesting about a list, that we can mix up all sorts of things in it, and that's OK.
数组放到数组中去,让我们把这个包含,字符串a的数组放进去,然后再显示,我们看到了一些,挺有趣的事情:我们可以把各种,各类的东西混合着放进去,没问题。
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