架构师训练营第 0 期第三周作业

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发布于: 2020 年 06 月 23 日

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1. 请在草稿纸上手写一个单例模式的实现代码，拍照提交作业。
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请用组合设计模式编写程序，打印输出图 1 的窗口，窗口组件的树结构如图 2 所示，打印输出示例参考图 3。
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Code
package main
import "fmt"
type Printer interface {
	Print()
}
type Component struct {
	children []*Component
	kind     string
	name     string
}
func NewComponent(kind, name string) *Component {
	return &Component{
		kind:     kind,
		name:     name,
		children: []*Component{},
	}
}
func (c *Component) AddChildren(children ...*Component) {
	if c.children == nil {
		c.children = []*Component{}
	}
	c.children = append(c.children, children...)
}
func (c *Component) Print() {
	fmt.Printf("print %s(%s)\n", c.kind, c.name)
	for _, child := range c.children {
		child.Print()
	}
}
func main() {
	frame := NewComponent("Frame", "FRAME1")
	frame.AddChildren(
		NewComponent("Label", "用户名"),
		NewComponent("TextBox", "文本框"),
		NewComponent("Label", "密码"),
		NewComponent("PasswordBox", "密码框"),
		NewComponent("CheckBox", "复选框"),
		NewComponent("TextBox", "记住用户名"),
		NewComponent("LinkLabel", "忘记密码"),
	)
	winForm := NewComponent("WinForm", "WINDOW窗口")
	winForm.AddChildren(
		NewComponent("Picture", "LOGO图片"),
		NewComponent("Button", "登录"),
		NewComponent("Button", "注册"),
		frame,
	)
	winForm.Print()
}
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Output
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