python 元组tuple 增删改查操作

初始化:

data_tuple = ()

data_tuple1 = (1,)

data_tuple2 = tuple()

 

新增:

data_tuple+data_tuple1

(data_tuple,1,'a')

data_tuple[:2]+(object,)+data_tuple[:2] 向第3个元素位置处加上一个对象object

 

删除:

data_tuple[:2]+data_tuple[3:] 删除第3个元素

 

 

查询:

data_tuple[index]

data_tuple.index(object_value)

data_tuple.count(object_value)

value in data_tuple

value not in data_tuple

for item in data_tuple: