英文:
What kind of operation is x%y in golang?
问题
我正在通过一些 Golang 教程，我遇到了这个 for 循环：
for n := 0; n <= 5; n++ {
if n%2 == 0 {
continue
}
fmt.Println(n)
}
我对 n%2 这个语句感到困惑。
这段代码的输出是：
1
3
5
看起来这些数字不是 2 的倍数，但如果是这样的话，我不明白 == 0 这部分的含义是什么？是否有关于这个操作的资源，或者我应该查找一些内容？
英文:
I'm going through some golang tutorials, and I came across this for loop:
for n := 0; n <= 5; n++ {
if n%2 == 0 {
continue
}
fmt.Println(n)
}
I'm confused by the n%2 statement.
The output of this is:
1
3
5
It looks like these are not multiples of 2, but I'm not understanding the == 0 part of the statement if that's the case? Is there a resource that talks about this operation, or something I should look up?
答案1
得分: 12
这被称为取余运算符，它返回除法运算的余数。因此，当X可以被Y整除时，X % Y == 0将为真。
这个运算符和用%表示它在许多语言中都很常见。
参考相关问题：https://stackoverflow.com/questions/17524673/understanding-the-modulus-operator
英文:
This is called the remainder operator, it returns the remainder of a division operation. Hence X % Y == 0 will be true when X can be evenly divided by Y.
This operator and % to represent it is common in many languages.
See related question: https://stackoverflow.com/questions/17524673/understanding-the-modulus-operator
答案2
得分: 2
这是余数/模运算符。它返回给定数字除法的余数：
https://en.wikipedia.org/wiki/Modulo_operation
这段代码计算所有的奇数。
英文:
It's the remainder/modulo-operator. This returns the rest of the division with the given number:
https://en.wikipedia.org/wiki/Modulo_operation
This code fragment calculates all uneven numbers.
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