@dataclass class elfin: name: str age: int def __post_init__(self): if type(self.name) is str: self.identity = identity_dict[self.name] 测试上面的案例:>>> from dataclasses import dataclass >>> identity_dict = { ... "firstelfin": "boss", ... "secondelfin": "master", ......
If init is true, an __init__() method is added to the class. If repr is true, a __repr__() method is added. If order is true, rich comparison dunder methods are added. If unsafe_hash is true, a __hash__() method function is added. If frozen is true, fields may not be ...
static final DatabaseType SQL_AZURE Static value SqlAzure for DatabaseType. Constructor Summary 展開資料表 ConstructorDescription DatabaseType() Deprecated Use the fromString(String name) factory method. Creates a new instance of DatabaseType value. Method Summary 展開資料表 Modifier and...
DatatypeConfigurationException(Throwable) Create a new DatatypeConfigurationException with the specified cause. Fields 展开表 is_generated (Inherited from Throwable) Properties 展开表 Cause Returns the cause of this throwable or null if the cause is nonexistent or unknown. (In...
A type name occurs where an expression is required. An expression must consist of a combination of variables, constants, literals, properties, and Function procedure calls.Error ID: BC30109To correct this errorRemove the type name and construct the expression using valid elements....
He invited me to a classy party at his mansion. 他邀请我去他的豪宅参加一个高雅的派对。二、classic classic 是 class 的另一个常见的形容词形式，表示经典的、典型的、传统的。classic 通常用来形容文学、艺术、音乐等领域的作品，表示它们具有代表性、影响力或永恒价值。例如：Romeo and Juliet is a ...
The class loader for an array class, as returned by Class.getClassLoader() is the same as the class loader for its element type; if the element type is a primitive type, then the array class has no class loader. Applications implement subclasses of ClassLoader in order to extend the ...
select_one() : mrs::database::dv::JsonMappingUpdater select_optimize() : Item_bool_func2, Item_func, Item_func_between, Item_func_in, Item_func_isclosed, Item_func_isempty, Item_func_isnotnull, Item_func_isnull, Item_func_isvalid, Item_func_json_contains, Item_func_json_overlaps,...
The RAW class is a representation of the Oracle RAW datatype. It is intended to be immutable. The user should not try to change its contents once it is constructed. Constructor SummaryRAW(byte[] raw_bytes) Construct a RAW from a byte array. RAW(java.lang.Object val) Construct a RAW...
The AppLogic class is the base class for all AppLogic code. It provides a suite of useful AppLogic-related helper methods and member variables. You can, for example, use methods in your derived AppLogic class to create database connections, queries, transactions, and HTML output. ...