rain_example_crate/
lib.rs

1//! # My Crate
2//! `rain_example_crate` 收集了一般的通用计算函数
3//! 
4//!   `rain_example_crate` is a collection of utilities to make performing certain calculations more convenient.
5
6/// 给定的数字加1
7/// 
8/// # Examples
9/// 
10/// ```
11/// let arg = 5;
12/// let answer = rain_example_crate::add_one(arg);
13/// 
14/// assert_eq!(answer, 6);
15/// 
16pub fn add_one(x: i32) -> i32 {
17  x + 1
18}