如何实现微信小程序url传值

如何实现微信小程序url传值？

1：将参数加在url后面

2：在onload里面获取

onLoad: function (options) {
    var that = this;
    var id = options.id //获取值
    that.id = id
    var class_id = options.class_id
//在这个地方指定
    that.class_id = class_id
    var position = options.position
    that.position = position
    that.getSubject();
  },

3：获取使用