python字符串有没有“contains”方法

直接用in操作符就行了

if "something-you-care" in somestring:
  pass

或者find

s = "This be a string"
if s.find("is") == -1:
    print("No 'is' here!")
else:
    print("Found 'is' in the string.")

或者operator

import operator

if not operator.contains(somestring, "blah"):
    continue

或者count

string.count("bah") >> 0
string.count("Hello") >> 1

或者re

>>> import re
>>> print(re.findall(r'( |t)', to_search_in)) # searches for t or space
['t', ' ', 't', ' ', ' ']

and so on.