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And if it returns a value, you've got to do something with that return value too, much like we did up here.
如果它返回了一个值，你便用那个返回值,做一些事情，就像我们刚在上面做的。
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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。
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The prototype is just its return value, its name, and its arguments, if any.
原型就是他的返回值，它的名字，它的参数之类的。
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The only thing that you have to put in the function prototype, ; again, is three things; one, the name of the function; the return value; and its arguments.
你唯一要加入到函数原型中的东西，是有三个东西，一，函数的名字;,返回值，和它的参数。
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And it's up to me to put that return value in a variable.
那个放在变量中的值是取决于我所赋的值。
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Two, the arguments or parameters, and three, is the return value.
第二个，参数和参量，还有三，是那个返回值。
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Literally, return the control from this function, and take the value of the next expression, and return that as the value of the whole computation.
正如字面意义上说的，从这个函数返回，然后取得下一个表达式的值,并把这个值作为整个计算的结果返回。
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So, after the second line for code here char * s1 gets the return value of get string this is what the state of our world looks like.
在第二行之后,这个代码char，*s1，等于GetSting的返回值,这就是它看起来的状态。
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If GetInt's return value is greater than zero, what do, in plain English?
如果GetInt的返回值比0大，该干什么，用简单的英语说？
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> Yes. You don't actually store the return value of, get int.
>，是的，你实际上没有存储GetInt的返回值。
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- So now if Christiana doesn't actually -- if either programmer or who's programming these little puzzle pieces, don't actually do anything with this return value, and I call, get int, she wants to hand this piece of paper -- to me, but if I don't actually assign -- no, no, I just messed up the demo.
现在如果Christiana没有-,如果程序员或谁在编写这段代码,不要对这个返回值做任何事情，我调用GetInt，她把这张纸给我,但是如果我没有赋值-,不，不，我刚才把这个演示搞乱了。
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So you're implementing this black box, and if its purpose in life is to actually return a value, you have to tell the compiler what kind of value to expect, and this is going to have ripple effects.
你在实现这个黑盒子，如果它的目的是,返回一个值，你必须告诉编译器你期望的是什么类型的值，这个将是一个连锁反应。
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Then if the weight of i is less than the available weight, I can return the value of i.
然后如果i的重量,小于剩下的重量，我将返回i的价值。
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- Then you declare a float called f and then assign it -- -- let me scroll up for the folks in front -- that give return value of GetFloat.
然后你声明一个float类型f，再赋值-,让我向上为你们回滚到-,给出了GetFloat的返回值。
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And the reason that we now on the second line have the equal sign is because this function GetString has what's called a return value.
我们之所以,在第二行代码GetString前面加上等号,是因为这个函数会带回一个,返回值。
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And actually, if I don't want to clobber, as we say, overwrite the value of my variable, ; I could declare another one and store the return value in Y; Y so now I have two ints in memory; X and Y, 3 one with two, one with three.
实际上，如果你不想彻底清除，像我们说的，覆盖那个变量的值，我可以申明另一个变量Y，并在Y中保存那个返回值;,现在内存中有两个int数，X和，一个的值为2，一个为。
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Well, the return value of toupper so that literally changes this.
好的，toupper的返回值,也就改变了这个。
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I check the return value of GetInt is greater than zero.
我检查了GetInt的返回值比0大。
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But it's a valuable thing. It says, in each case, I return some useful value from this procedure.
但是这就是变量，是在每个例子中，我从这个程序中返回了一些有用的值。
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malloc I'm going to now use this new, fancy function called malloc and I'm going to say x gets the return value of malloc of the size of an int.
我现在使用这个新的，别致的函数,然后我指明x，=，malloc的int型数据的大小,的返回值。
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X I'm passing an X, and yet I'm also assigning the return value to X. So just intuitively what's going to be the effect of this one line of code?
我传一个X，之后我把返回值赋值给,很明显，这一行代码,将会产生什么作用？
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It will return me some random value from either the Gaussian or the normal distribution.
它会给我,返回符合高斯分布。
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And then the only other difference is obviously, it's a function I need to return a value.
然后还剩下一点明显的区别，对于方法我要有返回值。
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So the first thing I'm going to do is, I'm going to try and return the value in the memo.
所以我要做的第一件事，就是我将会尝试将,总价值返回到memo中。
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Right.? I'm going to set up a variable to say, none what's the answer I want to return, is it there or not. Initially it's got that funny value none.
看我要找的答案在不在数组里面，初始化为,然后建立一个索引。
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minus volatility to plus volatility it will return any value in here.
浮动值到+浮动值之间等概率地,去返回一个值。
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Except, before I return the value, I save it.
除了我再返回之前,还保留了这个值意外。
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I try and return the value.
我会尝试返回这个值。
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I'm going to say, gee, p2 is the x value the same in both of them, and if it is, and the y value's the same, then this is the same point, I'm going to return true.
这样的数据对象，我会把它们命名为p1和,我会去查看，看看两个对象中，的x值是不是相同，如果相同的话，就去查看y值是否相同。
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It's defined in CS50's library; its sole purpose in life is to ask the user for a floating point value and return it.
它被定义在CS50的函数库中，它的唯一目的是,向用户询问一个浮点数的值，然后返回它。
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