原来是返回这种格式:[('1001','雨衣防晒','68.8'),('1002','雨衣耐磨','50.8')]
突然返回这种格式:[{'id':'1001','name':'雨衣防晒','price':'68.8'}),{'id':'1002','name':'雨衣耐磨','price':'50.8')]