rust_learning/pub_use/
operations.rs

1// math/operations.rs
2
3/// 添加两个数并返回结果
4pub fn add(a: i32, b: i32) -> i32 {
5    a + b
6}
7
8/// 减去两个数并返回结果
9pub fn subtract(a: i32, b: i32) -> i32 {
10    a - b
11}