testing一个string的子string?
有没有简单的方法来testing一个Pythonstring“xxxxABCDyyyy”,看看是否包含“ABCD”?
if "ABCD" in "xxxxABCDyyyy": # whatever
还有其他几种方法,除了使用“in”操作符(最简单)
index()
>>> try : ... "xxxxABCDyyyy".index("test") ... except ValueError: ... print "not found" ... else: ... print "found" ... not found
find()
>>> if "xxxxABCDyyyy".find("ABCD") != -1: ... print "found" ... found
re
>>> import re >>> if re.search("ABCD" , "xxxxABCDyyyy"): ... print "found" ... found