先截個(gè)圖：

functionName() {

this.node.scale = 1;

let startPos = cc.v2(0,0);//初始位置

let randomNum_1 = Math.random()*300 - 150;

let fuhao = randomNum_1/Math.abs(randomNum_1);//X軸方向

let midX = fuhao * (Math.random()*250 + 1);

let midY = Math.random()*200 + 1050;

let midPos = cc.v2(midX,midY);//控制點(diǎn)（拋物線頂點(diǎn)）

let endX = 2*midPos.x;

let endY = -cc.winSize.height * 0.5;

let endPos = cc.v2(endX,endY);//終點(diǎn)

cc.tween(this.node).bezierTo(2,startPos,midPos,endPos)

.to(0.5,{y:(endY + 150)},{easing:"backOut"})//加一個(gè)落地彈一彈的效果

.to(0.8,{y:endY})//{easing:"backIn"}

.call(()=>{

ObserverClass.publish(EventType.RemoveGold,this.node);

})

.start();

}