python创建空元组
Python | 空元组 (Python | empty tuple)In python, we can also create a tuple without having any element. An empty tuple is created using a pair of round brackets, ().
在python中，我们也可以创建一个没有任何元素的元组 。 使用一对圆括号()创建一个空元组 。
Syntax:
句法：
tuple_name = ()
Example 1:
范例1：
# Python empty tuple creation`
tuple1 = ()
# printing tuple
print("tuple1: ", tuple1)
# printing length
print("len(tuple1): ", len(tuple1))
# printing type
print("type(tuple1): ", type(tuple1))
Output
输出量
tuple1: () len(tuple1): 0 type(tuple1):
Example 2:
范例2：
We can also create an empty tuple by initializing the tuple with tuple() – generally this method is used to clear/reinitialize the tuple.
我们也可以通过使用tuple()初始化元组来创建一个空元 组 -通常，此方法用于清除/重新初始化元组。
# Python empty tuple creation`
tuple1 = tuple()
# printing tuple
print("tuple1: ", tuple1)
# printing length
print("len(tuple1): ", len(tuple1))
# printing type
print("type(tuple1): ", type(tuple1))
print()
# non-empty tuple
tuple2 = (10, 20, 30, 40, 50)
# printing original tuple
print("tuple2: ", tuple2)
print()
# reinitialize
tuple2 = tuple()
print("After reinitialize...")
# printing tuple
print("tuple2: ", tuple2)
# printing length
print("len(tuple2): ", len(tuple2))
# printing type
print("type(tuple2): ", type(tuple2))
Output
输出量
tuple1: () len(tuple1): 0 type(tuple1):tuple2: (10, 20, 30, 40, 50) After reinitialize... tuple2: () len(tuple2): 0 type(tuple2):
翻译自: https://www.includehelp.com/python/empty-tuple-creation.aspx
python创建空元组
