return a + b class TestAddFunction(unittest.TestCase): def test_add_positive_numbers(self): self.assertEqual(add(2, 3), 5) def test_add_negative_numbers(self): self.assertEqual(add(-2, -3), -5) def test_add_zero(self): self.assertEqual(add(5, 0), 5) if __name__ == '_...
def __init__(self, name, author): =name self.author=author class Book2(Book1): def __init__(self, name, author, press): super(Book2, self).__init__(name, author) #使用super().来继承父类中的属性参数,其中super括号中的内容可以不写 self.press=press #子类Book2在继承时新增参数press...
With three arguments, return a new type object. This is essentially a dynamic form of the class statement. The name string is the class name and becomes thenameattribute. The bases tuple contains the base classes and becomes thebasesattribute; if empty, object, the ultimate base of all class...
create external table name_analysis ( name string, idcard string, src string, ) PARTITIONED BY (source string) ROW FORMAT DELIMITED FIELDS TERMINATED BY ','; 调用脚本 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #!/bin/bash echo "start running the Abstract Name analysis working ..."...
文档字符串是多行注释,出现在模块的py源代码文件顶部,或直接跟随class或def语句。它们提供了关于正在定义的模块、类、函数或方法的文档。自动化文档生成器工具使用这些文档字符串来生成外部文档文件,例如帮助文件或网页。 文档字符串必须使用三重引号的多行注释,而不是以哈希符号#开头的单行注释。文档字符串应该总是使...
con = cx_Oracle.connect('pythonhol', 'welcome', '127.0.0.1:/orcl:pooled', cclass = "HOL", purity = cx_Oracle.ATTR_PURITY_SELF) print con.version con.close() 该脚本与 connect.py 非常类似,但连接字符串后面添加了“:pooled”。还向 connect() 方法中传递了一个连接类“HOL”,并且将该连...
Python class属性的getset注解 python中class set,在Python中,集合是一个无序的不重复的序列。一般使用{}或者set()函数来创建。Tips:创建一个空的集合只能使用set(),因为{}是创建空字典用的,这个上节我们提到过。下面开始我们的快速学习:创建一个空集合,我们先看下他们
Python中class的理解笔记：类的定义与实例化：使用关键字class定义一个类，例如Circle类。类是对象的蓝图或模板，通过实例化创建具体的对象，如circle1和circle2是Circle类的实例。实例属性与类属性：实例属性：每个实例独有的属性，例如圆的半径，每个圆对象可以有不同的半径值。类属性：所有实例共享的属性...
getlo – build a large object from given oid [LO] N 大对象相关操作。 loimport – import a file to a large object [LO] N 大对象相关操作。 Object attributes Y - The DB wrapper class Initialization Y - pkey – return the primary key of a table Y - get_databases – get list of dat...
>>> import turtle as t>>> help(t.Pen)Help on class Turtle in module turtle:class Turtle(RawTurtle)| Turtle(shape='classic', undobuffersize=1000, visible=True)|| RawTurtle auto-creating (scrolled) canvas.|| When a Turtle object is created or a function derived from some| Turtle method...