중복제거

#제거

x=["a",1,"b",2,"a",3,"b",4,5,"b"]

# 방법1 - 순서가 없음

y=list(set(x))

print(y)

#순선유지

from collections import OrderedDict

ex2 =list(OrderedDict.fromkeys(x))

print(f'ex2 결과:{ex2}')

# 방법3- 순서유지

ex3=[]

for i in x:

    if i not in ex3:

        ex3.append(i)

print(ex3)

print("-------------")