On 22/08/12 03:57, mingqiang hu wrote:
can I use just one statement to figure out if substring “a” ,"b" "c"
are in string "adfbdfc" ? not use the statement like
("a" in "adfbdfc") or ( "b" in "adfbdfc") or ("c" in "adfbdfc" )
,because if I have lots of substring, this could sucks
This might not be the most efficient way, but:
>>> set("abc") <= set("adfbdfc")
True
>>> set("abce") <= set("adfbdfc")
False
If you want to check for substrings longer than one character, this
won't work. A solution then is to define a custom function:
def all_in(string, substrings):
for substring in substrings:
if substring not in string:
return False
return True
Ian
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