.
├── Cargo.toml
├── controller
│   ├── Cargo.toml
│   └── src
│       └── main.rs
├── model
│   ├── Cargo.toml
│   └── src
│       └── lib.rs
└── view
    ├── Cargo.toml
    └── src
        └── lib.rs

[workspace]

members=[
    "model",
    "view",
    "controller"
]

[package]
name = "model"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
# 不依赖其它crate,此节点为空即可

[package]
name = "view"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
# 声明依赖model
model = {path = "../model"}

[package]
name = "controller"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
model = {path = "../model"}
view = {path = "../view"}

#[derive(Debug)]
pub struct User{
   pub username:String,
   pub password:String
}

#[derive(Debug)]
pub struct Order{
    pub orderno:String
}

//使用model中的User类
use model::User;

pub fn get_login_info(name:String,pass:String)->User{
    User{
        username:name,
        password:pass
    }
}

use view::get_login_info;
use model::{User,Order};

fn main() {
    let mut u = get_login_info(String::from("test"), String::from("123456"));
    u.password = String::from("abcde");
    println!("{:?}", u);

    let o = Order{
        orderno:String::from("20211244123")
    };
    println!("{:?}",o);

    let u1 = User{
        username:String::from("abcd"),
        password:String::from("*123*J")
    };
    println!("{:?}",u1);
}

User { username: "test", password: "abcde" }
Order { orderno: "20211244123" }
User { username: "abcd", password: "*123*J" }