behavior生命周期生命周期执行顺序问题
https://developers.weixin.qq.com/miniprogram/dev/framework/custom-component/behaviors.html
同名字段的覆盖和组合规则中关于声明周期执行顺序,测试结果是先执行父behavior的生命周期,其次是子behavior

https://developers.weixin.qq.com/miniprogram/dev/framework/custom-component/behaviors.html
