def make_sound(self): return "Woof!" class Cat(Animal): def make_sound(self): return "Meow!" # 使用工厂创建动物对象 animal = AnimalFactory.create_animal("dog") print(animal.make_sound()) # 输出: Woof!1.2.2 提高软件质量和可维护性 设计模式鼓励良好的编码习惯,使代码更加灵活、健壮和易于...
Python doesn’t have a function to make a random number, but it does have a built-in module called random that can be used to generate random numbers. Here’s how to do it import random print(random.randrange(1, 10)) Program to add two numbers in Python a = input('Enter first nu...
Python programforBitonic Sort.Note thatthisprogram works only when sizeofinput is a powerof2.""" from typingimportList defcomp_and_swap(array:List[int],index1:int,index2:int,direction:int)->None:"""Compare the value at given index1 and index2ofthe array and swap themasper the given d...
def index(request): location_list = locations.objects.all().order_by('location_id') tmpl = loader.get_template("index.html") cont = Context({'locations': location_list}) return HttpResponse(tmpl.render(cont)) 这将从 models.py 中导入 'locations' 模型。 创建了一个按 LOCATION_ID 排序的...
|字典| 字典是无序的键值对,用花括号括起来 | Friends = { 'name': 'Yolanda ',' age': 25 }cars = { 'make': 'Pinto ',' safety-level': 'great' } | 试用Python 您实际上不需要安装任何特定的软件来尝试 Python、C# 和 Java 编程的一些基础知识。这些语言有很好的在线编程实验环境。首先,现在是...
numbers = array.array('h', [-2, -1, 0, 1, 2]) # 5个短整型有符号整数的数组(类型码是'h') memv = memoryview(numbers) len(memv) memv_oct = memv.cast('B') # 转换成'B'类型,也就是无符号字符 memv_oct.tolist() memv_oct[5] = 4 ...
message ='One of Python's strengthsisits diverse community.'print(message) 2-3 个性化消息:将用户的姓名存到一个变量中,并向该用户显示一条消息。显示的消息应非常简单,如“Hello Eric, would you like to learn some Python today?”。 name ='Eric'print("Hello"+ name +",would you like to lear...
numbers=list(range(1,1000001,1))fornumberinnumbers:print(number) 4-5 计算1\~1000000的总和 :创建一个列表,其中包含数字1~1000000,再使用min() 和max() 核实该列表确实是从1开始,到1000000结束的。另外,对这个列表调用函数sum() ,看看Python将一百万个数字相加需要多长时间。
# Make a new, absolute value array absValues = numpy.abs(values) print("Original NumPy array values:\n", values) print("Absolute values:\n", absValues) 1. 2. 3. 4. 5. 6. 此代码首先导入numpy模块。然后,我们创建一个values使用正整数和负整数命名的数组。
Makefile README.md mkdocs.yml requirements.txt sort.py Repository files navigation README License Awesome Python An opinionated list of awesome Python frameworks, libraries, software and resources. Inspired by awesome-php. Awesome Python Admin Panels Algorithms and Design Patterns ASGI Servers...