面试题

1. 面试题        2020-03-06

• pStr = 'hello world hello world'
  print('原来字符串是：%s'%pStr)
  def myReplace(pStr,oldStr,newStr):
      while True:
          position = pStr.find(oldStr)     #position存的是world的起始位置6
          #find 找不到字符串时返回-1
          if position == -1:
              break
          else:
              pStr = pStr[:position]+newStr+pStr[position+len(oldStr):]
          
      return pStr
      
  afterReplace = myReplace(pStr,'world','lifeng')
  print('替换后的字符串是：%s'%afterReplace)
  
  
  
  #用\把一行很长的语句分成几行写
  a='li\
  feng'
  print(a)

  哈哈哈哈，我就试试！！！

来源：https://www.cnblogs.com/fenglivoong/p/12427638.html