Golang简单工厂方法demo
package main import "fmt" /* ①封装人,属性包括姓名、年龄、身高、体重、颜值、资产、性别、性取向 ②给人封装结婚方法,参数是潜在的结婚对象: a、如果对方的性取向有问题,panic b、如果对方的颜值过低,返回错误 c、否则返回满意程度 */ type Gender int //性别取向 func (g Gender) String() string { return []string{"Male","Female","Bisexual"}[g] } //性别枚举 const ( Male = iota //男 Female //女 Bisexual //人妖 ) type Human struct{ Name string //名字 Age int //年龄 Height int //身高 Weight int //体重 Looking int //自己的颜值 TargetLooking int //期望的颜值 Rmb int //人民币 Sex Gender //自己的性别 TargetSex Gender //结婚目标性别 } //不理想配偶错误 type BadSouseError struct { why string } func (bse *BadSouseError)Error() string{ return bse.why } //工厂方法 func CreateBadSpouseError(o *Human) *BadSouseError { bse := new(BadSouseError) if o.Rmb < 1000000{ bse.why = "太穷" } else if o.Weight > 200 { bse.why = "太胖" } else if o.Age > 50 { bse.why = "太老" } else { return nil } return bse } func (h *Human)Marry(o *Human) (happiness int, err error) { //如果他的性别不等于你期望性别,报错 if o.Sex != h.TargetSex { panic(&BadSouseError{"淡定,,,我不是你的菜"}) return } if err = CreateBadSpouseError(o);err != nil { return } //如果颜值过低,返回错误 if o.Looking < h.TargetLooking { panic(&BadSouseError{"sorry,颜值不匹配"}) return } //计算幸福程度 happiness =(o.Height*o.Looking)/(h.Weight*h.TargetLooking) return } func NewHuman(name string,age,height,weight,rmb,looking,targetlooking int,sex,targetsex Gender) *Human{ human := new(Human) human.Name = name human.Age = age human.Height = height human.Weight = weight human.Rmb = rmb human.Looking = looking human.TargetLooking = targetlooking human.Sex = sex human.TargetSex = targetsex return human } func main(){ defer func(){ if err := recover(); err != nil { fmt.Println(err) } }() cook :=NewHuman("库克",11,180,123,123456,60,10,Male,Male) ySister := NewHuman("你妹",20,155,150,4321,20,90,Male,Male) happiness,err := cook.Marry(ySister) if err != nil { fmt.Println("牵手失败",err) } else { fmt.Println("牵手成功,幸福指数=",happiness) } }