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, start0 endlen(str

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/pythonabsfile=r"/root/log/"index=absfile.find("/")index=absfile.rfind("/")print absfileprint index
    output:
    9
    0

    ?

    ?