两个列表拼接

alist1=["apple","banana","orange"]
alist2=["pear","peach","watermelon"]

alist1.append(alist2)
print(alist1)

'''

['apple', 'banana', 'orange', ['pear', 'peach', 'watermelon']]

'''

-----------------------------------------------------------------------------

alist1=["apple","banana","orange"]
alist2=["pear","peach","watermelon"]

alist1.extend(alist2)
print(alist1)

'''

['apple', 'banana', 'orange', 'pear', 'peach', 'watermelon']

'''

----------------------------------------------------------------------

alist1=["apple","banana","orange"]
alist2=["pear","peach","watermelon"]

a3=alist1+alist2
print(a3)

'''

['apple', 'banana', 'orange', 'pear', 'peach', 'watermelon']

'''