Rustlings_structs

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

structs1.rs

// structs1.rs
// Address all the TODOs to make the tests pass!

struct ColorClassicStruct {
    // TODO: Something goes here
    name:String,
    hex:String
}

struct ColorTupleStruct(String,String/* TODO: Something goes here */);

#[derive(Debug)]
struct UnitStruct;

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn classic_c_structs() {
        // TODO: Instantiate a classic c struct!
        let green = ColorClassicStruct{
            name : String::from("green"),
            hex : String::from("#00FF00"),
        };
        assert_eq!(green.name, "green");
        assert_eq!(green.hex, "#00FF00");
    }

    #[test]
    fn tuple_structs() {
        // TODO: Instantiate a tuple struct!
        let green = ColorTupleStruct(String::from("green"),String::from("#00FF00"));

        assert_eq!(green.0, "green");
        assert_eq!(green.1, "#00FF00");
    }

    #[test]
    fn unit_structs() {
        // TODO: Instantiate a unit struct!
        let unit_struct = UnitStruct;
        let message = format!("{:?}s are fun!", unit_struct);

        assert_eq!(message, "UnitStructs are fun!");
    }
}

structs2.rs

// structs2.rs
// Address all the TODOs to make the tests pass!
// No hints, just do it!


#[derive(Debug)]
struct Order {
    name: String,
    year: u32,
    made_by_phone: bool,
    made_by_mobile: bool,
    made_by_email: bool,
    item_number: u32,
    count: u32,
}

fn create_order_template() -> Order {
    Order {
        name: String::from("Bob"),
        year: 2019,
        made_by_phone: false,
        made_by_mobile: false,
        made_by_email: true,
        item_number: 123,
        count: 0,
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn your_order() {
        let order_template = create_order_template();
        // TODO: Create your own order using the update syntax and template above!
        let your_order = Order{
            name: String::from("Hacker in Rust"),
            count: 1,
            ..order_template
        };
        assert_eq!(your_order.name, "Hacker in Rust");
        assert_eq!(your_order.year, order_template.year);
        assert_eq!(your_order.made_by_phone, order_template.made_by_phone);
        assert_eq!(your_order.made_by_mobile, order_template.made_by_mobile);
        assert_eq!(your_order.made_by_email, order_template.made_by_email);
        assert_eq!(your_order.item_number, order_template.item_number);
        assert_eq!(your_order.count, 1);
    }
}

Rustlings_structs

原文：https://www.cnblogs.com/nightwindnw/p/Rustlings_structs.html