Rustlings_test1

Posted 2020-12-10 nightwindnw

Rustlings_test1

练习过程中的随手记,很多问题也未深究,,简单问题可能直接贴改完之后的代码,..分享出来,若能帮助大家,意外乐趣

// test1.rs
// This is a test for the following sections:
// - Variables
// - Functions

// Mary is buying apples. One apple usually costs 2 Rustbucks, but if you buy
// more than 40 at once, each apple only costs 1! Write a function that calculates
// the price of an order of apples given the order amount. No hints this time!


// Put your function here!
fn calculate_apple_price(num:i32) -> i32 {
    if num > 40 {
        num
    }else {
        num * 2
    }
}

// Don‘t modify this function!
#[test]
fn verify_test() {
    let price1 = calculate_apple_price(35);
    let price2 = calculate_apple_price(65);

    assert_eq!(70, price1);
    assert_eq!(65, price2);
}