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问题描述



说我有这样的字符串

astring =''abcd efgd 1234 fsdf gfds abcde 1234''

如果我想要的话找到哪个位置是1234,我怎样才能实现这一目标......?我想b / b
想要使用index()但它只给我第一次出现。我想

知道两者的位置1234

谢谢

解决方案




嗯,我不确定它的效率如何,但以下是

似乎是为我做的:



[10,31]

HTH,


-tkc






==========

def getAllIndex(aString = None,aSub = None):

t = dict()

c = 0

ndx = 0

而True:

试试:

ndx = aString.index(aSub,ndx)

t [c] = ndx

ndx + = 1

c + = 1

除了ValueError:

break

返回t

===========


这将返回找到的字典;即,



{0:5,1:15}



{0:5,1:15}




从0开始的连续整数作为键?看起来你想要一个清单

而不是一个字典。


彼得


hi
say i have string like this
astring = ''abcd efgd 1234 fsdf gfds abcde 1234''
if i want to find which postion is 1234, how can i achieve this...? i
want to use index() but it only give me the first occurence. I want to
know the positions of both "1234"
thanks

解决方案



Well, I''m not sure how efficient it is, but the following
seemed to do it for me:


[10, 31]
HTH,

-tkc





==========
def getAllIndex(aString=None, aSub=None):
t=dict()
c=0
ndx=0
while True:
try:
ndx=aString.index(aSub, ndx)
t[c]=ndx
ndx += 1
c += 1
except ValueError:
break
return t
===========

This will return a dictionary of what was found; i.e.,


{0: 5, 1: 15}



{0: 5, 1: 15}



Consecutive integers starting at 0 as keys? Looks like you want a list
instead of a dict.

Peter


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10-27 08:43