python web框架中实现原生分页

 #!/usr/bin/env python # -*- coding:utf-8 -*- class Pagination: def __init__(self, p, all_count, pre=10, max_show=11): ''' :param p: 当前页码 :param all_count: 数据总条数 :param pre: 每页数据量 :param max_show: 最多页码数 ''' try: self.p = int(p) # 传进来的页码 if self.p <= 0: self.p = 1 except Exception as e: self.p = 1 # 总量 # all_count = all_count # pre = per # 每页数据条数 total_num, more = divmod(all_count, pre) if more: total_num += 1 # total_num总数据页数 # 显示页码数 max_show = max_show if total_num <= max_show: # 总数据量很小 page_start = 1 page_end = total_num else: if self.p<a style="color:transparent">来源gao*daima.com搞@代#码网</a> - max_show // 2 = total_num + 1: # 防止右边出现超出 page_end = total_num page_start = page_end - max_show else: page_start = self.p - max_show // 2 page_end = self.p + max_show // 2 # 数据的起始结束 self.start = (self.p - 1) * pre self.end = self.p * pre # 页码 self.page_start = page_start self.page_end = page_end self.total_num = total_num @property def page_html(self): li_list = [] for i in range(self.page_start, self.page_end + 1): if i == self.p: li_list.append('<li class="active">{}</li>'.format(i, i)) else: li_list.append('<li>{}</li>'.format(i, i)) # 添加页首 页尾 li_list.insert(0, '<li><span>«</span></li>'.format( self.p - 1)) li_list.append( '<li><span>»</span></li>'.format(self.p + 1)) if self.p == 1: li_list[0] = '<li class="disabled"><span>«</span></li>' elif self.p == self.total_num: li_list[-1] = '<li class="disabled"><span>»</span></li>' pagehtml = ''.join(li_list) return pagehtml