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lstd So this is pretty-- similarly might we say this dash L STD for standard, for Standard I/O.
同样也可以是,即标准输入输出库。
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printf I have my includes, standard IO's; so I can use print F, but then I had this thing called a prototype.
我包含了标准输入输出文件，所以我可以使用，然后我有这个原型。
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Why is this much nice? Well, that's a handy piece of code. Because imagine I've got that now, and I can now store that away in some file name, input dot p y, and import into every one of my procedure functions, pardon me, my files of procedures, because it's a standard way of now giving me the input.
为什么这样很好呢？,这是一段很好用的代码,因为想象下如果我有了这段代码,我能把它用某个文件名保存起来,后缀是。py，导入到所有的处理函数中,抱歉，我的处理文件,因为这是一个标准的输入方法。
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But it turns out that because the Standard I/O Library is -lstdio so common they don't force people to type this all day long because it's just so commonly used.
由于大家都会用到标准输入输出库,因此我们不要求每次都在后面添上,可以省略。
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stdio h This file here is called standard I/O or stdio.h and this is just another text file someone else wrote many years ago and by using that line of code there, I'm telling the computer, give me acces to this code that this other person wrote that's in that file.
在这里的头文件称为标准输入输出文件或,这是由某位前人编写的文本文件,我们只需要刚才所述的一行代码，就能告诉电脑，让我连接到,这个前人在那个文件中写的代码。
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Include our library, include the standard library.
包括我们自己的库，包括标准输入输出库。
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- Well -- and I'll fix this blue next time -- I'm first telling the compiler I need access to the standard io library because printf is declared there.
哦！--下次我把这个字体颜色改成蓝色的-,我先告诉编译器--我需要使用,标准输入输出库,因为printf在那个库里面申明的。
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At the top, I've got some CS50 Library going on, argv standard I/O library; I don't bother mentioning argc or argv because I'm not going to use them in this program.
在顶端，我使用了CS50函数库，标准输入输出库，我没有提到argc或者,因为我不会在这个程序中使用它们。
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cs50 h It's not called standard io.h, it's called cs50.h. That's where the code we wrote for you will live and then we'll see how to do this in examples today onward but we wrote for you some tools, some functions that calls GetChar for get a character.
当然不是标准输入输出库了，而是叫做,这里面有一些我们写的代码,等一下我会举几个例子,我们写了一些函数,比如GetChar，意思是得到一个变量。
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