在Python中使用一个元素创建一个元组

It's not simple to create a tuple with one element, if we try to create a tuple with parenthesis or without parenthesis, tuple will not be created.

创建具有一个元素的元组并不简单，如果我们尝试创建带有括号或不带括号的元组，则不会创建元组。

Consider the below example,

考虑下面的示例，

tuple1 = ("Hello")
print("type of tuple1: ", type(tuple1))
tuple2 = "Hello"
print("type of tuple2: ", type(tuple2))

Output

输出量

type of tuple1:  <class 'str'>
type of tuple2:  <class 'str'>

See the output, the type of tuple1 and tuple2 is str.

看到输出， tuple1和tuple2的类型为str 。

Then, how to create a tuple with one element?

然后， 如何用一个元素创建一个元组？

It's little tricky to create a tuple with one element, we need to use a trailing comma after the element that represents that it is a tuple.

创建具有一个元素的元组有点麻烦， 我们需要在表示它是元组的元素后使用尾随逗号 。

Consider the below example,

考虑下面的示例，

tuple1 = ("Hello",)
print("type of tuple1: ", type(tuple1))
tuple2 = "Hello",
print("type of tuple2: ", type(tuple2))
tuple3 = (100,)
print("type of tuple3: ", type(tuple3))
tuple4 = 100,
print("type of tuple4: ", type(tuple4))

Output

输出量

type of tuple1:  <class 'tuple'>
type of tuple2:  <class 'tuple'>
type of tuple3:  <class 'tuple'>
type of tuple4:  <class 'tuple'>

Now, see the output, the type of variables is tuple. Hence, we can create one element tuple by using a trailing comma after the element and it works with and without parenthesis.

现在，查看输出，变量的类型为tuple 。因此，我们可以通过在元素后使用尾部逗号来创建一个元素元组，并且该元素可以在带或不带括号的情况下使用。