not sure that is what he wants...
>>> for i in projectResult:
... i.replace("C:\\GIS_Result\\","")
...
'abc.shp'
'1234.shp'
'zyx.shp'
>>> projectResult
['C:\\GIS_Result\\abc.shp', 'C:\\GIS_Result\\1234.shp', 'C:\\GIS_Result\\zyx.shp']
>>>
it doesn't seem to change the list
and with this, I get an error message since projectResult is a list
>>> projectResult.replace("C:\GIS_Result\","")
Traceback ( File "<interactive input>", line 1
projectResult.replace("C:\GIS_Result\","")
^
SyntaxError: EOL while scanning string literal
>>>