Python basic programming climb out

Python from novice when reptiles are the easiest way to start, the following is some common basis for practice.

"""
    简单的循环处理
"""
import requests


url_list = [
    "https://www.baidu.com",
"https://www.cnblogs.com/"
]

for url in url_list:
    result = requests.get(url)
    print(result.text)


"""
    线程池处理
"""
import requests
from concurrent.futures import ThreadPoolExecutor


def fetch_request(url):
    result = requests.get(url)
    print(result.text)


url_list = [
    "https://www.baidu.com/" ,
 "https://www.cnblogs.com/"
 ] 

the pool = ThreadPoolExecutor ( 10 ) for url in URL_LIST:
     # thread pool threads get executed fetch_request method
 pool.submit (fetch_request , url) # close the thread pool
 pool.shutdown () "" "
     thread pool + callback
 " ""
 Import Requests
 from concurrent.futures Import ThreadPoolExecutor DEF fetch_async ( url ): 
    the Response = requests.get ( url )
     return the Response DEF callback











(future):
    print(future.result().text)


url_list = [
    "https://www.baidu.com/",
"https://www.cnblogs.com/"
]

pool = ThreadPoolExecutor(10)

for url in url_list:
    v = pool.submit(fetch_async, url)
    # 调用回调函数
v.add_done_callback(callback)

pool.shutdown()

"""
    进程池处理
"""
import requests
from concurrent.futures import ProcessPoolExecutor


def fetch_requst(url):
    result = requests.get(url)
    print(result.text)


url_list = [
    "https://www.baidu.com/",
"https://www.cnblogs.com/"
]

if __name__ == '__main__':

    pool = ProcessPoolExecutor(max_workers=10)

    for url in url_list:
        pool.submit(fetch_requst, url)

    pool.shutdown()

"""
    进程池+回调函数
"""
import requests
from concurrent.futures import ProcessPoolExecutor


def fetch_async(url):
    response = requests.get(url)
    return response


def callback(future):
    print(future.result().text)


url_list = [
    "https://www.baidu.com/",
"https://www.cnblogs.com/"
]


if __name__ == '__main__':
    pool = ProcessPoolExecutor(10)

    for url in url_list:
        v = pool.submit(fetch_async, url)
        v.add_done_callback(callback)

    pool.shutdown()