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Therefore, for simple branching programs, the length of time, the complexity the code, is what we would call constant.
因此，对于简单的分支程序，运行的时间长度，算法的复杂度，也就是我们说的常数。
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I also like computer programs that are simply in that language and seeing the item.
我也喜欢简单运用那种语言的电脑程序，而且你可以很容易地看到各个条目。
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Let's take a quick glimpse of what it's like to write a real program albeit a very trivial one.
下面是一个真正的程序,尽管它很简单。
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And it's hard to imagine a simpler program than this. So we very quickly realize that exhaustive testing is just never feasible for an interesting program.
更简单的程序了,因此我们很快的意识到,对一个程序来说详尽的,测试是永远不可行的。
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and I asked them what the process is and they just said you simply apply.
我问过他们整个程序是怎样的，他们就告诉我简单地申请一下。
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really easily just based on your... because you're the one writing the program,
真的很简单，就看你的……因为是你在写程序嘛。
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So let me just to try something a little more interesting, and then we'll get to writing some simple programs.
让我们来试试更加有趣的,一些事情吧，然后,我们再去写一些简单的小程序。
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- So sleep -- as the name implies -- simply puts the program to sleep for a second.
所以睡眠--顾名思义-,简单地将程序睡眠一秒钟。
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I know this is a simple example, but when you mature as a programmer, one of the first things you should do when you sit down to tackle some problem is write something like this pseudo code.
我知道这是个很简单的例子，但是当你们成长为一名程序员后，当你们碰到问题后第一件事情就是,该写一些类似于,伪代码的东西。
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Remember last time, I said that there's different kinds of complexity in our code, and I suggested for simple branching programs, the amount of time it takes to run that program is, in essence, bounded by the number of instructions, because you only execute each instruction at most once.
但是这里有个很重要的点,记得上节课，我提过在我们的代码中，有不同种类的复杂度，而且我还说了对于简单的分支程序,运行这种程序需要的总体时间,大体上，是和指令的数目相关的,因为每个指令只会被执行最多一次。
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Real simple programs.
真的是很简单的程序。
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> So this thing here, when green flag clicked say, oh, hi world, this was perhaps the simplest program we could write in Scratch.
>，我们先看看这个例子，“点击绿旗“下面显示“,这也许是我们用Scratch软件写出的最简单的，程序了。
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So I am going to on the fly write a very simple little main program that just illustrates some of the syntax that we can then visualize more interesting.
我很快的写了一个很简单地小程序,来说明一些语法,我们使它变得更有趣些。
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With simple branching, how long is it going to take to run a piece of code?
但是在简单分支程序中，执行一个程序,要多长时间呢？
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I'm gonna run the command called Nano which is a very simple program.
运行名为“Nano“的指令,这是一个非常简单的程序。
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I have simple branching programs.
讲过了简单的分支程序。
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It's sort of the canonical hello world program as computer scientists call this very simple example.
这只是某种“hello，world“程序,即计算机界最简单的程序样例。
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So this is the simplest program you can probably write in this language called Scratch.
这是一个用SCRATCH语言,编写的最简单程序。
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So here is the simplest program which is perhaps an ironic statement that you can implement with this language called C. So it takes a few lines of code to actually get something up and running and as you'll recall last Friday, I didn't even get this up and running because part of the process of writing a program is to one, write it.
让我们回到这个最简单的程序,你们也许觉得啼笑皆非，这么简单的例子,用C语言写出来就可以了嘛，的确只需要几行代码,就可以让这个程序跑起来,就像上周五的那样，我之所以没让它跑起来,因为编程步骤之一,就是“写“
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