To run our Age Calculator application, we need to add a few lines of code at the end of our script. # Run the Tkinter event loop app.mainloop() The mainloop() method is a crucial component of Tkinter applications. It initiates the event loop, which waits for user interactions and ...
classPerson:def__getattr__(self, name):returnf"Attribute '{name}' does not exist."p = Person()print(p.age)# 输出: Attribute 'age' does not exist.__setattr__(self, name, value):在设置属性值时调用。classPerson:def__setattr__(self, name, value):print(f"Setting attribute '{name}' ...
import random def get_code(num=6): code="" for i in range(num): random_int=str(random.randint(0,9)) random_alp=chr(random.randint(97,122)) random_alp_upper=chr(random.randint(65,90)) random_one=random.choice([random_int,random_alp,random_alp_upper]) code=code+random_one return...
import fire class Calculator(object): """A simple calculator class.""" def double(self, number): return 2 * number if __name__ == '__main__': fire.Fire(Calculator) 接下来,我们可以在命令行下调用对应的接口,也可以通过参数名称直接传参, > python calculator.py double 10 # 20 > python ...
# 创建 Calculator 实例并使用链式调用 chain_obj = Calculator().add(4).sub(2).mul(6).div(4).get_result print(chain_obj) # 输出结果为: 3.0 查询数据库 方法链通常在查询生成器或对象关系映射(ORM)库中用于构造复杂的数据库查询,这里以django自带的ORM为例。
RFM模型是客户关系管理(CRM)中的一种重要分析模型,用于衡量客户价值和客户创利能力。该模型通过以下三个指标来评估客户的价值和发展潜力: 近期购买行为(R):指的是客户最近一次购买的时间间隔。这个指标可以反映客户的活跃程度和购买意向,进而判断客户的质量和潜在价值。
CODE_OF_CONDUCT.md CONTRIBUTING.md Caesar Cipher Encoder & Decoder.py Calculate resistance.py Calculator with simple ui.py Calendar (GUI).py Chrome Dino Automater.py Classification_human_or_horse.py CliYoutubeDownloader.py Collatz-Conjecture.py Conversation.py CountMillionCharacter.py...
if__name__=='__main__':#code_here 如果执行该脚本的时候,该if判断语句将会是True,那么内部的代码将会执行。 如果外部调用该脚本,if判断语句则为False,内部代码将不会执行。 3.2 可变参数 顾名思义,函数的可变参数是传入的参数可以变化的,1个,2个到任意个。当然可以将这些参数封装成一个 list 或者 tuple...
Calculator GUI Number Guessing Game Image Converter GUI Weight Converter GUI Visualize a Chess Board with Python Age and Gender Detection Bar Code and QR Code Reader Create Audiobook with Python Face Detection Extract Text from PDF Card Game using DS and Algo ...
View Code shutil.rmtree(path[, ignore_errors[, onerror]])递归的去删除文件 1 def move(src, dst): 2 """Recursively move a file or directory to another location. This is 3 similar to the Unix "mv" command. 4 5 If the destination is a directory or a symlink to a directory, the sou...