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Python classes do not accept any parameters

編輯:Python

The longest string without repeated characters , I keep reporting mistakes in this way
class Solution():
def lengthOfLongestSubstring(self,s):
m=str(s)
q=[]
max_1=0
for i in m:
if i not in q:
q.append(i)
print(q)
else:
sum_1=len(q)
q.clear()
q.append(i)
if max_1<sum_1:
max_1=sum_1
print(max_1)
s1=Solution("abcabcab")
si.lengthOfLongestSubstring()
Report errors :TypeError: Solution() takes no arguments
Then I changed it to :s1=Solution()
si.lengthOfLongestSubstring("abcabcab")
An error again :NameError: name 'si' is not defined. Did you mean: 's1'?
Please tell me how to change according to this idea ?


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