python web框架中实现原生分页

本文实例为大家分享了python web框架实现原生分页的具体代码，供大家参考，具体内容如下

原生分页器 示例   

#!/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 - max_show // 2 <= 0: # 防止左边出现0页
page_start = 1
page_end = max_show

elif self.p + 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"><a href="?p={}" >{}</a></li>'.format(i, i))
else:
li_list.append('<li><a href="?p={}" >{}</a></li>'.format(i, i))

# 添加页首 页尾

li_list.insert(0,
 '<li><a href="?p={}" aria-label="Previous"><span aria-hidden="true">&laquo;</span></a></li>'.format(
 self.p - 1))
li_list.append(
'<li><a href="?p={}" aria-label="Next"><span aria-hidden="true">&raquo;</span> </a></li>'.format(self.p + 1))

if self.p == 1:
li_list[0] = '<li class="disabled"><span aria-hidden="true">&laquo;</span></li>'
elif self.p == self.total_num:
li_list[-1] = '<li class="disabled"><span aria-hidden="true">&raquo;</span></li>'

pagehtml = ''.join(li_list)
return pagehtml

来源：https://blog.csdn.net/wuxingpu5/article/details/95089765