python删除某个字符

# -*- coding: utf-8 -*-

def delblankline(infile, outfile):
  infopen = open(infile, 'r',encoding="utf-8")#打开本体文件
  outfopen = open(outfile, 'w',encoding="utf-8")#打开写入文件
  lines = infopen.readlines()
  for line in lines:#按行读取
    for db in line:#按字读取
      if db =='/':
        continue
      outfopen.write(db)#写入文件
  infopen.close()#关闭文件
  outfopen.close()#关闭文件

delblankline("jb51.txt", "04.txt")#调用函数