class Pagination:def __init__(self, total_count, per_page_count, page_num):""":param total_count: 数据总条数:param per_page_count: 每页数据显示的条数:param page_num: 当前查看的页数"""self.total_count = total_countself.per_page_count = per_page_countself.page_num = page_num# 每页数据显示10条数据# 第1页索引: 0:10# 第2页索引: 11:20# 第3页索引: 21:30@propertydef start(self):return (self.page_num - 1) * self.per_page_count@propertydef end(self):return self.page_num * self.per_page_countdata_list = [1, 2, 34, 4, 5, 56, 11, 1, 243, 1234]pager = Pagination(192, 10, 3)ret = data_list[pager.start:pager.end] # 属性方法调用时,就不需要加括号了
print(ret)