Go接口-Go实例教程|
来源:网络
编辑:阡殇
时间:2022-06-18
Go 接口
package main import ( "fmt" "math" ) /* define an interface */ type Shape interface { area() float64 } /* define a circle */ type Circle struct { x,y,radius float64 } /* define a rectangle */ type Rectangle struct { width, height float64 } /* define a method for circle (implementation of Shape.area())*/ func(circle Circle) area() float64 { return math.Pi * circle.radius * circle.radius } /* define a method for rectangle (implementation of Shape.area())*/ func(rect Rectangle) area() float64 { return rect.width * rect.height } /* define a method for shape */ func getArea(shape Shape) float64 { return shape.area() } func main() { circle := Circle{x:0,y:0,radius:5} rectangle := Rectangle {width:10, height:5} fmt.Printf("Circle area: %f ",getArea(circle)) fmt.Printf("Rectangle area: %f ",getArea(rectangle)) }
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