blocks|key|481640|text|不，整件事叫做“迭代语句”。包含for关键字的语句称为for语句。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|481641|引用C11，第6.8章，|481642|语句指定要执行的操作。..。|blockquote|481643|以及自第6.8.5节起|481644|迭代-语句：
虽然(表达式)语句do语句会在(表达式)；for+(表达式选择；表达式选择；表达式)语句中为(声明表达式选择；表达式选择)语句|481645|entityMap^0|G|3|R|3|0|2|3|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$]]|$1|K|3|L|5|6|7|Z|8|@]|D|@]|E|$]]|$1|M|3|N|5|J|7|10|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|P|$]]

No, the whole thing is called &quot;iteration statement&quot;. The one which includes the <code>for</code> keyword is called <code>for</code> statement.
Quoting <code>C11</code>, chapter 6.8,
<blockquote>
A statement specifies an action to be performed. [...]
</blockquote>
and from §6.8.5
<blockquote>
iteration-statement:
<pre><code>while ( expression ) statement

do statement while ( expression ) ;

for ( expressionopt ; expressionopt ; expressionopt ) statement

for ( declaration expressionopt ; expressionopt ) statement
</code></pre>
</blockquote>

blocks|key|2198190|text|不，for循环是c和c%2B%2B中的迭代条件语句。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|BOLD|entityRanges|data|2198191|C书n1256段落6.8.5.3+for语句|2198192|声明
(第-1条；第2条；第3条)
语句的行为如下:表达式表达式-2是在循环主体每次执行之前计算的控制表达式。表达式表达式-3在循环体每次执行后被计算为一个空表达式。如果子句-1是一个声明，则它声明的任何标识符的范围是声明的其余部分和整个循环，包括其他两个表达式；它是在对控制表达式进行第一次计算之前按执行顺序到达的。如果子句-1是表达式，则在对控制表达式进行第一次计算之前，将其计算为一个空表达式。|blockquote|2198193|entityMap^0|2|3|F|6|0|2|5|9|7|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|S|8|@$9|T|A|U|B|D]|$9|V|A|W|B|D]]|E|@]|F|$]]|$1|I|3|J|5|K|7|X|8|@]|E|@]|F|$]]|$1|L|3|-4|5|6|7|Y|8|@]|E|@]|F|$]]]|M|$]]

No, <code>for</code> loop is a iterative conditional statement in c and c++.
C book n1256 paragraph 6.8.5.3 The for statement
<blockquote>
The statement
for ( clause-1 ; expression-2 ; expression-3 )
statement
behaves as follows: The expression expression-2 is the controlling
expression that is evaluated before each execution of the loop body.
The expression expression-3 is evaluated as a void expression after
each execution of the loop body. If clause-1 is a declaration, the
scope of any identifiers it declares is the remainder of the
declaration and the entire loop, including the other two expressions;
it is reached in the order of execution before the first evaluation of
the controlling expression. If clause-1 is an expression, it is
evaluated as a void expression before the first evaluation of the
controlling expression.
</blockquote>

blocks|key|2198229|text|基本上，任何具有可迭代方法的对象都可以在for循环中使用。即使是字符串，尽管没有一个可迭代的方法-但我们将在这里不谈这个问题。拥有一个可迭代的方法基本上意味着数据可以以列表的形式表示，其中有多个有秩序的值。您可以通过使用next()和iter()方法创建一个对象来定义自己的可迭代性。|type|blockquote|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2198230|您可以从For循环Python+wiki中看到更多细节。|unstyled|2198231|entityMap|0|LINK|mutability|MUTABLE|url|https://wiki.python.org/moin/ForLoop^0|8|5|K|5|W|3|0|4|G|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|I|3|-4|5|H|7|11|8|@]|D|@]|E|$]]]|J|$K|$5|L|M|N|E|$O|P]]]]

<blockquote>
 Basically, any object with an iterable method can
 be used in a for loop in Python. Even strings, despite not having an
 iterable method - but we'll not get on to that here. Having an
 iterable method basically means that the data can be presented in list
 form, where there's multiple values in an orderly fashion. You can
 define your own iterables by creating an object with next() and iter()
 methods.
</blockquote>

You can see more details from <a href="https://wiki.python.org/moin/ForLoop" rel="nofollow noreferrer">For loop Python wiki</a>.

blocks|key|860443|text|for+-循环不是一个函数；相反，它是一个具有条件头的迭代语句(例如:计数器"i“不应大于或小于任何数n，而对于每个循环迭代，我则增加一定数目)。条件标头不应视为for-循环的参数。for-循环也有一堆用大括号括起来的代码(这里只引用C语言)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|860444|函数和for-循环之间的区别在C语言中应该是显而易见的：|860445|一个函数只在另一个函数中调用；它不能在另一个函数中定义。因此，for-循环不能是一个函数，因为它的代码定义了在它正在用实现的函数中找到的大括号。|unordered-list-item|860446|所以我们不能有这样的东西：|860447|+int+main()
+{
++++void+AnyFunction()+//+cannot+define+a+function+inside+another+function.+It+can+only+be+called
++++{
++++++++printf("Hello");
++++}
}|code-block|syntax|javascript|860448|但我们可以有这样的东西：|860449|int+main()
{
++++for+(int+i+=+0;+i+<+5;+i%2B%2B)+//+If+this+is+a+function,+how+can+we+define+it+inside+another+function?
++++{
++++++++printf("Hello");
++++}
}|860450|希望这能有所帮助。|860451|entityMap^0|1C|2|0|0|1N|D|0|0|D|0|0|0|C|0|0|0|9|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|12|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|13|8|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|K|3|L|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|M|3|N|5|O|7|19|8|@]|D|@]|E|$P|Q]]|$1|R|3|S|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|T|3|U|5|O|7|1D|8|@]|D|@]|E|$P|Q]]|$1|V|3|W|5|6|7|1E|8|@$9|1F|A|1G|B|C]]|D|@]|E|$]]|$1|X|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|Y|$]]

A for-loop is not a function; rather, it is an iterative statement that had a condition header (for example: the counter "i" should not be greater than or less than any number n, while i is incremented by a certain number for every loop iteration). The condition header should not be seen as the parameters of the for-loop. The for-loop also has a body of code enclosed in curly braces (only referring to C-language here).

The difference between a function and the for-loop should be obvious in the C-language:

<ul>
<li>A function is only called in another function; it cannot be defined inside another function. Hence, the for-loop cannot be a function as it has code defined the curly braces found inside the function it is being implemented in.</li>
</ul>

So we cannot have something like:

<pre><code> int main()
 {
 void AnyFunction() // cannot define a function inside another function. It can only be called
 {
 printf("Hello");
 }
}
</code></pre>

But we can have something like:

<pre><code>int main()
{
 for (int i = 0; i &lt; 5; i++) // If this is a function, how can we define it inside another function?
 {
 printf("Hello");
 }
}
</code></pre>

Hope this helps.

blocks|key|2198317|text|如果您深入到汇编程序级和基本CPU指令，什么是函数？函数只是被JMP+(跳转)指令包围的代码块。因此，指令指针(当前正在执行的指令)从程序中的其他地方跳转到函数的开始，执行它的代码，然后跳转到其他地方。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2198318|从这个意义上说，循环绝对是一个函数。唯一的细微区别是，它通常跳到自己的开始检查某些条件，并再次执行自己，而不是跳转到其他地方(通常是其调用的地方)。|2198319|是的，在更高的抽象级别上，它与函数有很大的不同，但在基本层次上，它就是函数。您可以将它看作是另一个函数中的函数。因此，在您的功能中，您应该始终将您的循环视为“自治岛屿”。|2198320|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

If you go down to assembler level and basic CPU instructions, what is a function? A function is just some block of code that is surrounded by JMP (jump) instructions. So, instruction pointer (instruction that is currently executed) jumps from some other place in program to the start of a function, executes it's code, and then jumps somewhere else.
In this sense, a loop is definitely a function. Only slight difference is that it usually jumps to it's own beginning to check some condition and execute itself again, instead of jumping to some other place (usually place of its call).
Yes, on higher abstraction levels it differs from functions greatly, but on basic level it is function. You can think of it as function inside another function. So you should always treat your loops as &quot;autonomous islands&quot; in your functions.

blocks|key|2198258|text|for是一个关键字，range是一个函数，它以值的范围作为参数来操作循环体。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2198259|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

for is a keyword and range is a function which takes range of values as a parameter to manipulate the body of loop.

Is a 'for loop' a function? If not, what is it? How it works?

Example in C:

<pre><code>for(int i=0; i&lt;32; i++)
{
 ...
}
</code></pre>

Example in Python:

<pre><code>for i in range(0, 32):
 print "..."
</code></pre>

Is a 'for loop' a function?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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“for循环”是函数吗？如果不是，那是什么？它是如何工作的？C中的示例：for(int i=0; i<32; i++){ ...}Python中的示例：for i in range(0, 32): print "..."

问“for循环”是函数吗？
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问“for循环”是函数吗？
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