这些表单字段允许您将变量和字段联系起来。

These form fields allow you to associate variables with the field.

youdao

对应于主键等字段的变量在各个实体中重复出现。

Variables for fields such as primary keys were duplicated from entity to entity.

youdao

首先，必须把字段从单个实例变量修改成字段和值组合构成的散列表。

First, you must change the fields from individual instance variables to a hash table of field and value pairs.

youdao