python 学习札记-str.find() str.rfind()

python 学习笔记--str.find() str.rfind()

str.find()   & str.rfind()

 

str.find(str, start=0 end=len(string))

 

Parameters:

Here is the detail of parameters:

  • str: specifies the string to be searched.

  • start : starting index, by default its 0

  • end : ending index, by default its equal to the lenght of the string

     

     

    find()----找到的第一个符合字符的index

    rfind()-----找到最后一个符合的字符的index

     

    #/usr/bin/python
    absfile=r"/root/log/"
    index=absfile.find("/")
    index=absfile.rfind("/")
    print absfile
    print index
    output:
    9
    0