qq_39075632的博客

假设我们要打印一百个页面，前面的url是不变的，后面的数字递增方法一：url=[ ]for i in range(1,101): url='page{}'.format(i) urls.append(url)print(urls)方法二：列表推导式urls1 =[ "page{}".format(i) for i in range(1,100)]print(urls1)字典推导式cook_str='abv=123;fsgh=234;ffasg=555'print(cook_str