什么是“％”在C中的意思 [英] What does "%" mean in C

问题描述

您好。我是C编程的新手，正在处理一些简单的代码。有时我会遇到如下行：


flag =（i％primes [j]）;


在这种情况下，变量''i''，'j''和''flag''是整数，''primes''是一个数组。我知道''％''用作printf语句中的能指，例如其中％d表示小数位，但在上面的上下文中是什么意思？

Hi. I am new to C programming and am working through some simple bits of code. Sometimes I come across a line like:

flag = (i%primes[j]);

In this case, the variable ''i'', ''j'' and ''flag'' are integers and ''primes'' is an array. I understand that ''%'' is used as a signifier in printf statements, e.g. where %d indicates a position for a decimal, but what does it mean in the above context?

Thanks

推荐答案

嗨。我是C编程的新手，正在处理一些简单的代码。有时我会遇到如下行：


flag =（i％primes [j]）;


在这种情况下，变量''i''，'j''和''flag''是整数，''primes''是一个数组。我知道''％''用作printf语句中的能指，例如其中％d表示小数位，但在上面的上下文中是什么意思？

Hi. I am new to C programming and am working through some simple bits of code. Sometimes I come across a line like:

flag = (i%primes[j]);

In this case, the variable ''i'', ''j'' and ''flag'' are integers and ''primes'' is an array. I understand that ''%'' is used as a signifier in printf statements, e.g. where %d indicates a position for a decimal, but what does it mean in the above context?

Thanks

it用于mod运算符。

it is used of mod operator .

它用于mod运算符。

it is used of mod operator .

模运算符返回左侧的剩余部分除以右侧。所以5％2将评估为1.（5/2 = 2余数：1）。

The modulo operator returns the remainder of the left side divided by the right side. So 5%2 will evalutate to 1. (5 / 2 = 2 remainder : 1).

模运算符返回剩下的左侧由右侧分开。因此5％2将评估为1.（5/2 = 2余数：1）。

The modulo operator returns the remainder of the left side divided by the right side. So 5%2 will evalutate to 1. (5 / 2 = 2 remainder : 1).

我只是想添加％运算符只能用于整数。


问候，

Pradeep

Hi,
I just wanted to add % operator can be used only with "integers".

Regards,
Pradeep

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