function (rect) { this.tthis.x = this.left; this.tthis.y = this.top; this.trect.x = rect.left; this.trect.y = rect.top; return (this.tthis.x < this.trect.x + rect.width && this.trect.x < this.tthis.x + this.width && this.tthis.y < this.trect.y + rect.height && this.trect.y < this.tthis.y + this.height); }
能说明下吗?没看明白
没人能解答?