一级理论和二级理论的区别

高拱面色青的发紫。Before decorator!High Cost Density Tests Operators　两名悍匪为了逃避追捕决定越境；两名偷猎者藏好猎物等待买家；一名女子只身前往无人区抓出轨老公。三拨人在国境线附近突然遭遇沙尘暴，唯一可藏身保命的地方就是不远处的解放军边防哨所。留守值班的两名解放军战士同意他们暂时进入哨所避难，同时核查身份、记录备案。这三拨人在哨所内心思各异，解放军战士发现疑点后旁敲侧击，先后识破了偷猎者与悍匪的真实身份。一场短兵相接的恶战后，将悍匪狙击在国境线之内。Prototype mode refers to specifying the type of object to be created by giving a prototype object, and then creating more objects of the same type by copying. The main points of its implementation include:As far as a class is concerned, there should be only one reason for it to change. If a class assumes too many responsibilities, it is tantamount to coupling these responsibilities together. Changes in one responsibility may affect other responsibilities. In addition, coupling multiple responsibilities together will also affect reusability.3.2. 2 Turn on the event scheduler