class Point

_x:number

_y:number

+move(dx:number,dy:number):void

+scale(dx:number,dy:number):void

class Point

_x:number

_y:number

+move(dx:number,dy:number):void

+scale(dx:number,dy:number):void

继承

继承

2019-05-09 10:33:59 0 42
这里是评论

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