简单类型包括字符串、浮点数、整数、枚举等。
Simple types include string, float, integer, enumeration, etc.
MySQL数据库支持DB 2数据库产品不直接支持的ENUM字符串枚举数据类型。
The MySQL database supports enum string enumerated data types which the DB2 database product does not directly support.
PostalAddress元素的type属性实际上是枚举类型，它允许选择4 个字符串之一。
The type attribute of the PostalAddress element is actually an enumerated type, allowing a choice of one of four strings.
信用卡类型(由四个字符串构成的枚举式列表)。
用owl可以指定这些属性的类型，比如主机名是字符串类型，而操作系统则有可能是一个特定选项已经指定的枚举类型。
OWL lets you specify the type of these properties, so hostname would be string, whilst operating system might be an enumeration with specific options specified.
而且，枚举值是通过其Class对象提供的，同时提供的还有映射值的类型(在该例中，它只是一个简单的字符串)。
Also, an enumerated type is supplied via its Class object, along with the type of the Map's values (in this case, simple strings). The output of this method is shown in Listing 11.
常数可以是整数、字符、浮点数、字符串、Boolean、octet或枚举型，但不能是any类型或用户定义的类型。
Your constants can be integer, character, floating-point, string, Boolean, octet or enumerated but not of type any or a user-defined type. Here are some examples.
对字符串的属性，增加了一个可选的枚举类型定义，枚举的属性值将被验证。
For properties of type string, an optional Enum definition has been added. Property values will be validated against the Enum.
对字符串的属性，增加了一个可选的枚举类型定义，枚举的属性值将被验证。
For properties of type string, an optional Enum definition has been added. Property values will be validated against the Enum.
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