python之实现自定义分页功能

# 实现自定义分页
import math
def custom_paginator(current_page, num_page, max_page=10):  
  middle = math.ceil(max_page / 2)    
  # 一种特殊情况    
  # 总页数,小于最大页数    
  if num_page < max_page:    
      start = 1        
      end = num_page    
  else:    
      # 一般情况        
      # 当前页在头部的时候        
  if current_page <= middle:      
      start = 1            
      end = max_page        
  # 当前页在中间时        
  elif (current_page > middle) & (current_page < num_page - middle + 1):      
      start = current_page - middle            
      end = current_page + middle - 1        
  else:            
  # 当前页在尾部      
      start = num_page - max_page + 1            
      end = num_page    
  return start, end