PyThon3列表操作

print("-----------------------------------------------")
list_data = [1, "2", 3.0, 4*1, int(5.0), ""]
list_data[5] = "6"
print(list_data, type(list_data), len(list_data))
print(list_data[1])
print(list_data[-1])
print(list_data[3:])
print(list_data[:3])
print(list_data*2)
print(list_data+list_data)
print("-----------------------------------------------")
list_data = []
print(list_data)
print(list_data.append(1))
print(list_data)
list_data.insert(1, "2")
print(list_data)

-----------------------------------------------
[1, ‘2‘, 3.0, 4, 5, ‘6‘] <class ‘list‘> 6
2
6
[4, 5, ‘6‘]
[1, ‘2‘, 3.0]
[1, ‘2‘, 3.0, 4, 5, ‘6‘, 1, ‘2‘, 3.0, 4, 5, ‘6‘]
[1, ‘2‘, 3.0, 4, 5, ‘6‘, 1, ‘2‘, 3.0, 4, 5, ‘6‘]
-----------------------------------------------
[]
None
[1]
[1, ‘2‘]