1.添加粒子库，放在项目同级目录下（必须！！必须！！）

2.添加路径：

3.添加代码：

private creatParticle(_pname: string, _target, _x: number, _y: number) {        if (_target != null) {            let texture = RES.getRes(_pname + "_png");            let config = RES.getRes(_pname + "_json");               var _particle = new particle.GravityParticleSystem(texture, config);            _particle.touchEnabled = false;            _target.addChild(_particle);            _particle.x = _x;            _particle.y = _y;            _particle.start()            return _particle;        } else {            console.log("装载容器不存在");        }    }