01 练习

练习题

# 1. 写函数，函数接受一个列表，请将列表中的元素每个都 +100
def func(arg):
    result = []
    for item in arg:
        if item.isdecimal():
            result.append(int(item) + 100)
	return result 

# 2. 写函数去，接受一个列表。列表中都是url，请访问每个地址并获取结果。
import requests 
def func(url_list):
    result = []
    try:
        for url in url_list:
            response = requests.get(url)
            result.append(response.text)
	except Exception as e:
        pass
	return result 

def func2(url_list):  #推荐此方法，func方法，如果报错，后面的url不会进行发送请求。
    result = []
    for url in url_list:
        try:
            response = requests.get(url)
            result.append(response.text)
        except Exception as e:
            pass
	return result 

func(['http://www.baidu.com','http://www.google.com','http://www.bing.com'])