Function tao_of_rust::ch02::function::fizz_buzz

pub fn fizz_buzz(num: i32) -> String

函数定义

Basic usage:

pub fn fizz_buzz(num: i32) -> String {
    if num % 15 == 0 {
        return "fizzbuzz".to_string();
    } else if num % 3 == 0 {
        return "fizz".to_string();
    } else if num % 5 == 0 {
        return "buzz".to_string();
    } else {
        return num.to_string();
    }
}
assert_eq!(fizz_buzz(15), "fizzbuzz".to_string());
assert_eq!(fizz_buzz(3), "fizz".to_string());
assert_eq!(fizz_buzz(5), "buzz".to_string());
assert_eq!(fizz_buzz(13), "13".to_string());