public static HanaInstancePowerStateEnum fromString(String name) Creates or finds a HanaInstancePowerStateEnum from its string representation. Parameters: name - a name to look for. Returns: the corresponding HanaInstancePowerStateEnum.values public static Collection values() Gets kn...
public static string[] GetNames(Type enumType); 参数 enumType Type 枚举类型。 返回 String[] enumType 的常数名称的字符串数组。 例外 ArgumentNullException enumType 为null。 ArgumentException enumType 参数不是 Enum。 InvalidOperationException .NET 8 及更高版本: enumType 是一种布尔支持的枚举...
SELECT CONCAT('"', gender, '"') AS gender_string FROM users; 将gender字段转换为整数: 代码语言:txt 复制 SELECT ORD(gender) - ORD('A') + 1 AS gender_int FROM users; 参考链接 MySQL ENUM Type Documentation 通过以上内容,您可以全面了解MySQL中ENUM类型的基础概念、优势、类型、应用场景以及常见问...
Column(db.String(50), unique=True, nullable=False) size = db.Column(db.Enum("SMALL", "MEDIUM", "LARGE"), default="MEDIUM") address = db.Column(db.String(150), nullable=True) def save(self): """保存数据""" db.session.add(self) db.session.commit() def __repr__(self): return...
fastjson提供的JSON.toJSONString(...)有很多重载的方法,例如: public staticString toJSONString(Object object, SerializeConfig config, SerializerFeature... features) 所以,fastjson可以通过设置SerializeConfig来配置enum的序列化。 public static void main(String[] args) { ...
Returns a Boolean telling whether a given integral value, or its name as a string, exists in a specified enumeration.
public static SafeSearch fromString(String value) Parses a serialized value to a SafeSearch instance. Parameters value java.lang.String the serialized value to parse. Returns SafeSearch the parsed SafeSearch object, or null if unable to parse. ...
public static AuthenticationType fromString(String value) Parses a serialized value to a AuthenticationType instance. Parameters value java.lang.String the serialized value to parse. Returns AuthenticationType the parsed AuthenticationType object, or null if unable to parse. ...
enum case (string) value (only forIntBackedEnum) EnumCollectionit's a one-dimensional collection that contains only enums. Creating an EnumCollection You can create an enum collection in four different ways: use\Datomatic\EnumCollections\EnumCollection; EnumCollection::of(Enum::class)->from($dat...
StringFormatFlags Attributes FlagsAttribute Fields NameValueDescription DirectionRightToLeft1 Text is displayed from right to left. DirectionVertical2 Text is vertically aligned. FitBlackBox4 Parts of characters are allowed to overhang the string's layout rectangle. By default, characters are repositioned ...