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//! # add crate //! 这是一个玩具哈😂 use rand::Rng; /// add function /// /// # Example /// /// ``` /// use mosea_adder::add; /// assert_eq!(add(0, 0), 0); /// ``` pub fn add(left: u64, right: u64) -> u64 { left + right } #[cfg(test)] mod tests { use super::*; #[test] fn it_works() { let result = add(2, 2); assert_eq!(result, 4); } }