具有重叠现象的字符串计数
def function(string, str_to_search_for):
count = 0
for x in xrange(len(string) - len(str_to_search_for) + 1):
if string[x:x+len(str_to_search_for)] == str_to_search_for:
count += 1
return count
function('1011101111','11')returns 5?
慕容708150
慕丝7291255
HUWWW
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