封装成组件+通过wxs操作style

https://developers.weixin.qq.com/miniprogram/dev/framework/view/interactive-animation.html

下面有个代码片段

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    startAnimation: function () {

    var index = 0,

    that = this,

    bezier_points = that.linePos['bezier_points'],

    len = bezier_points.length - 1;

    this.setData({

    hide_good_box: false,

    bus_x: that.finger['x'],

    bus_y: that.finger['y']

    })

    this.timer = setInterval(function () {

    index++;

    that.setData({

    bus_x: bezier_points[index]['x'],    

    bus_y: bezier_points[index]['y']   

    })   

    if (index >= len) {   

    clearInterval(that.timer);    

    that.setData({    

    hide_good_box: true,   

    })  

    }   

    }, 15);

    },

做个代码片段吧