If the converter produced an object of type trade, then the handler class must contain a method named handle (trade trade).
如果转换器产生了一个交易类型的对象,随后处理类必须包含一个名为handle (trade trade)的方法。
There are three fundamental solutions for mapping inheritance into a relational database, and to understand them I will discuss the trade-offs of mapping the class diagram presented in Figure 1.
将继承映射到关系数据库中有三种基本解决办法,为更好地理解它们,我将讨论在图1中显示的映射类图表的优缺点。
When I think that I wanted to have my two girls taught the middle-class paper-box trade, the making of boxes for New Year's gifts!
当我想到我只一心指望我的两个女儿能学会糊那种半精致的纸盒,送新年礼物的那种纸盒。可是!
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