lianxi

Posted 2021-01-07 844115-l

classmates =[‘Michael‘,‘Bob‘,‘Tracy‘,‘李三‘,‘Tracy‘,56]
new = [‘Rose‘,‘Jack‘]
classmates.insert(2,‘Tom‘)
classmates.append(‘Jack‘)
classmates.extend(new)
print(classmates)
classmatesSet = set(classmates)

classmatesSet.add(‘Jack‘)
print(classmatesSet)
print(list(‘ababcd‘),tuple(‘ababcd‘))

结果