>>> s='nihao,shijie' >>> t='nihao' >>> result = t in s >>> print result True
>>> import string >>> s='nihao,shijie' >>> t='nihao' >>> result = string.find(s,t)!=-1 >>> print result True >>> result = string.rfind(s,t)!=-1 >>> print result True
import string
def find_string(s,t):
try:
string.index(s,t)
return True
except(ValueError):
return False
s='nihao,shijie'
t='nihao'
result = find_string(s,t)
print result #True
>>> s='nihao,shijie' >>> t='nihao' >>> result = s.find(t)>=0 >>> print result True >>> result=s.count(t)>0 >>> print result True >>> result=s.index(t)>=0 >>> print result True
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