today_utils/
lib.rs

1#[cfg(test)]
2mod tests {
3    #[test]
4    fn it_works() {
5        let arg = 5;
6        let answer = crate::add_one(arg);
7        assert_eq!(6, answer);
8    }
9}
10
11/// 加一操作
12///
13/// # 例子
14///
15/// ```
16/// let arg = 5;
17/// let answer = today_utils::add_one(arg);
18///
19/// assert_eq!(6, answer);
20/// ```
21pub fn add_one(x: i32) -> i32 {
22    x + 1
23}