一个实例操作所有一个数据库表或视图的业务逻辑。
A single instance that handles the business logic for all rows in a database table or view.
模拟实例级操作(没有用户ID和密码)的本地授权测试。
Simulate the testing of the local authorization for an instance-level operation (without the user ID and password).
外部变量允许业务过程变量可见,并可以直接在过程实例之外操作。
External variables allowing business process variables to be visible and directly manipulated outside process instance.
It says if I want to get the length of a segment, going to pass in that instance, it says from that instance, get the start point, that's the thing I just found.
它的意思是如果我想要,得到一个线段的长度,首先要把这个实例传进来,然后对于这个实例,从开始点,取得x坐标,然后通过同样的操作。
Notice that that typically also defines for me what the internal variables are, what the internal characteristics of the class are going to be.
就放进去是比较好的,我写下了init声明意思就是,当你创建一个实例的时候,这就是你要进行的操作。
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