如何使用自定义步骤迭代范围? [英] How do I iterate over a range with a custom step?

问题描述

如何在 Rust 中使用 1 以外的步长迭代一个范围?我来自 C++ 背景，所以我想做类似的事情

How can I iterate over a range in Rust with a step other than 1? I'm coming from a C++ background so I'd like to do something like

for(auto i = 0; i <= n; i+=2) {
    //...
}

在 Rust 中，我需要使用 range 函数，而且似乎没有第三个参数可用于自定义步骤.我怎样才能做到这一点?

In Rust I need to use the range function, and it doesn't seem like there is a third argument available for having a custom step. How can I accomplish this?

推荐答案

range_step_inclusive 和 range_step 早已不复存在.

range_step_inclusive and range_step are long gone.

从 Rust 1.28 开始，迭代器::step_by 稳定:

As of Rust 1.28, Iterator::step_by is stable:

fn main() {
    for x in (1..10).step_by(2) {
        println!("{}", x);
    }
}

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