1 # @Time :2019/6/17 16:00 2 # -*- encoding:utf-8 -*- 3 4 data_list = [] 5 for i in range(1, 901): 6 data_list.append('alex-%s' % i) 7 8 9 class Page: 10 ''' 11 处理分页相关的代码 12 ''' 13 14 def __init__(self, page, per_page_num=10): 15 ''' 16 数据初始化一个900条数据的列表 17 :param page: 要查看的页码 18 :param per_page_num: 默认每页显示10条 19 ''' 20 self.page = page 21 self.per_page_num = per_page_num 22 23 @property 24 def start(self): 25 return (self.page - 1) * self.per_page_num 26 27 @property 28 def end(self): 29 return self.page * self.per_page_num 30 31 ###################写法一.################### 32 # while True: 33 # # 1. 要查看的页面 34 # page = int(input('请输入要查看的页码:')) 35 # 36 # # 2. 每页显示 10 条 37 # #per_page_num=10 38 # obj = Page(page) 39 # page_data_list = data_list[obj.start:obj.end] 40 # for item in page_data_list: 41 # print(item) 42 43 ###################写法二.################### 44 45 def run(self, start, end): 46 page_data_list = data_list[start:end] 47 for item in page_data_list: 48 print(item) 49 50 51 while True: 52 page = int(input('请输入要查看的页码:')) 53 obj = Page(page) 54 obj.run(obj.start, obj.end)
