多态就是多重形态。
案例：
收入的案例：
package main
import (
"fmt"
)
type Income interface {
calculate () float64
source() string
}
//固定账单项目
type FixedBuilding struct {
ProjectName string
biddedAcount float64
}
// 定时和材料项目
type TimeAndMetiarl struct {
ProjectName string
WorkHours int64
WorkRate float64
}
func (f FixedBuilding)calculate() float64 {
return f.biddedAcount
}
func (f FixedBuilding)source() string {
return f.ProjectName
}
//通过广告点击获得收入
type Advertise struct {
dName string
Clickout int
incomePerclick float64
}
func (a Advertise)calculate() float64 {
// a.incomePerclick*a.Clickout
return a.incomePerclick*float64(a.Clickout)
}
func (a Advertise)source() string {
return a.dName
}
func calculateNetIncome(ic []Income)float64 {
netIncome :=0.0
for _,v := range ic{
fmt.Printf("收入来源：%s 收入金额：%+v
",v.source(),v.calculate())
netIncome +=v.calculate()
}
return netIncome
}
func main() {
p1 :=FixedBuilding{
"项目1",
8000,
}
p2 :=FixedBuilding{
"项目2",
9000,
}
p3 :=Advertise{
dName: "百度",
Clickout: 100,
incomePerclick: 60,
}
p4 :=Advertise{
dName: "谷歌",
Clickout: 10,
incomePerclick: 80,
}
ic := []Income{p1,p2,p3,p4}
fmt.Println(calculateNetIncome(ic))
}
/* out
收入来源：项目1 收入金额：8000
收入来源：项目2 收入金额：9000
收入来源：百度 收入金额：6000
收入来源：谷歌 收入金额：800
23800
*/