1 replace用法

a = "<SPK/>一年**九店<NPS/>**<NON/>"

help(a.replace)

Help on built-in function replace:

replace(...)
    S.replace(old, new[, count]) -> string

    Return a copy of string S with all occurrences of substring
    old replaced by new.  If the optional argument count is
    given, only the first count occurrences are replaced.
 

a = a.replace("<","_")
a = a.replace(">","_")

print a

_SPK/_一年**九店_NPS/_**_NON/_

2 split用法

help(a.split)

Help on built-in function split:

split(...)
    S.split([sep [,maxsplit]]) -> list of strings

    Return a list of the words in the string S, using sep as the
    delimiter string.  If maxsplit is given, at most maxsplit
    splits are done. If sep is not specified or is None, any
    whitespace string is a separator and empty strings are removed
    from the result.
 

b=a.split("_")

print b

['', 'SPK/', '\xe4\xb8\x80\xe5\xb9\xb4**\xe4\xb9\x9d\xe5\xba\x97', 'NPS/', '**', 'NON/', '']

print b[0]