品网站建设公司如何做运营推广

什么是建造者模式

即将结构体属性方法与构建解离，使用专门的builder进行建造，说白了就是new和其他的方法分开，集中处理更方便。

直接上代码：

#[derive(Debug)]
struct children {name: String,age: u32,
}impl children {pub fn find_generator() -> Generator {Generator::default()}
}
#[derive(Default)]
struct Generator {name: String,age: u32,//... and so on...
}impl Generator {pub fn new() -> Generator {Generator {name: String::from("generator"),age: 11,//... and so on...}}pub fn buildchildren(self) -> children {children {name: self.name,age: self.age,//... and so on...}}
}fn main() {let child_from_generator = Generator::new().buildchildren();println!("{:?}", child_from_generator);
}