deffetch_url(url):response=requests.get(url)print(f'获取 {url} 的响应: {response.status_code}')urls=['https://www.example.com','https://www.python.org','https://www.github.com']threads=[]forurlinurls:thread=threading.Thread(target=fetch_url,args=(url,))threads.append(thread)thread....
python 体验AI代码助手 代码解读复制代码importasyncioimportaiohttpasyncdeffetch_url(url):asyncwithaiohttp.ClientSession()assession:asyncwithsession.get(url)asresponse:returnawaitresponse.text()asyncdefmain():urls=['http://example.com','http://example.org','http://example.net']tasks=[fetch_url(url...
Example #5Source File: main_test.py From python-docs-samples with Apache License 2.0 5 votes def test_app(main): app = webtest.TestApp(main.app) response = app.get('/') assert response.status_int == 200 assert re.search( re.compile(r'.*version.*', re.DOTALL), response.body) ...
print(dir(example)) ['__builtins__', '__cached__', '__doc__', '__file__', '__initializing__', '__loader__', '__name__', '__package__', 'add'] Here, we can see a sorted list of names (along with add). All other names that begin with an underscore are default P...
Example: Function to Add Two Numbers # function with two argumentsdefadd_numbers(num1, num2):sum = num1 + num2print("Sum: ", sum)# function call with two valuesadd_numbers(5,4) Run Code Output Sum: 9 In the above example, we have created a function namedadd_numbers()with argument...
withopen('example.txt','w')asfile:file.write('Hello, World!')# 文件在离开上下文后会自动关闭 自定义上下文管理器 还可以创建自定义的上下文管理器,通过定义__enter__和__exit__方法来实现。 以下是一个简单的自定义上下文管理器示例: python
Python ValueError Exception with Try Except Here is another example that will help you to learn more about it, suppose you are taking marks of the student as input from users. If the user enters strings it is treated as a typeError but if the user enters a value greater than 100, it is...
主要章节和小节重新按照如下逻辑划分: 一、Python基础 1 数字 2 字符串 3 列表 4 流程控制 5 编程风格 6 函数 7 输入和输出 8 数据结构 9 模块 10 错误和异常 11 类和对象 二、Python模块 1 时间模块 2 文件操作 3 常见迭代器 4 yield 用法 5 装饰
with sqlite3.connect("mydatabase.db") as connection: cursor = connection.cursor() cursor.execute("SELECT * FROM mytable") 3.「网络连接」:类似于数据库连接,确保在网络连接使用完毕后关闭连接是良好的实践。 import requests url = 'https://www.example.com' ...
Python_Example_多子类继承程序 2018-09-12 Author: 楚格 IDE: Pycharm2018.02 Python 3.7 KeyWord : 继承 Explain: class A: def __init__(self): print("A") class B(A): pass # def __init__(self): # print("B") class C(A):