classPagination(object):def __init__(self, current_page, all_count, per_page_num=10, pager_count=11):"""封装分页相关数据

:param current_page: 当前页

:param all_count: 数据库中的数据总条数

:param per_page_num: 每页显示的数据条数

:param pager_count: 最多显示的页码个数"""

try:

current_page=int(current_page)exceptException as e:

current_page= 1

if current_page < 1:

current_page= 1self.current_page=current_page

self.all_count=all_count

self.per_page_num=per_page_num#总页码

all_pager, tmp =divmod(all_count, per_page_num)iftmp:

all_pager+= 1self.all_pager=all_pager

self.pager_count=pager_count

self.pager_count_half= int((pager_count - 1) / 2)

@propertydefstart(self):return (self.current_page - 1) *self.per_page_num

@propertydefend(self):return self.current_page *self.per_page_numdefpage_html(self):#如果总页码 < 11个：

if self.all_pager <=self.pager_count:

pager_start= 1pager_end= self.all_pager + 1

#总页码 > 11

else:#当前页如果<=页面上最多显示11/2个页码

if self.current_page <=self.pager_count_half:

pager_start= 1pager_end= self.pager_count + 1

#当前页大于5

else:#页码翻到最后

if (self.current_page + self.pager_count_half) >self.all_pager:

pager_end= self.all_pager + 1pager_start= self.all_pager - self.pager_count + 1

else:

pager_start= self.current_page -self.pager_count_half

pager_end= self.current_page + self.pager_count_half + 1page_html_list=[]#添加前面的nav和ul标签

page_html_list.append('''

• ''')

first_page= '

首页' % (1)

page_html_list.append(first_page)if self.current_page <= 1:

prev_page= '

上一页'

else:

prev_page= '

上一页' % (self.current_page - 1,)

page_html_list.append(prev_page)for i inrange(pager_start, pager_end):if i ==self.current_page:

temp= '

%s' %(i, i,)else:

temp= '

%s' %(i, i,)

page_html_list.append(temp)if self.current_page >=self.all_pager:

next_page= '

下一页'

else:

next_page= '

下一页' % (self.current_page + 1,)

page_html_list.append(next_page)

last_page= '

尾页' %(self.all_pager,)

page_html_list.append(last_page)#尾部添加标签

page_html_list.append('''

''')return ''.join(page_html_list)