picture attribute with string data [计] 串式数据的图像属性
attribute string 要验证的属性
attribute string match 属性串匹配
A private String attribute can be declared with the appropriate view name.
可以用适当的视图名来声明私有string属性。
Supports one attribute: idenitification, which is a read-only string attribute.
支持一个属性:idenitification,它是只读字符串属性。
For instance, a String attribute of an entity could be implemented as a CHAR, VARCHAR, or TEXT type of column.
例如,可以将实体的String类型的属性实现为CHAR、VARCHAR或text类型的列。
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