Python语言中的函数range（）没有给出预期的结果

Question

As a beginner in python, I was trying to test the function range() in the IDLE terminal. I wrote in the terminal the below posted code and I expected to see result like this:

range(10)==>[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

But unfortunately, i do not get the expected result

Python Code I Tried:

range(10)
print(range(10))

The Result From The shell:

>>>
print(range(10))

Answer 1

In python 3, range() returns a generator, that's why it shows you the object rather than the values:

>>> print(range(10))
range(0, 10)

If you were expecting a list, you will need to convert it to one before printing it:

>>> print(list(range(10)))
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Generators only create one value at a time in order to save memory. You can read up on them here , which includes an example suited to your test case.

Answer 2

Cross version solution

C:\Documents and Settings\U009071\Desktop>python
Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> print(list(range(10)))
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>>
>>> for i in range(10):
...     print(i)
...
0
1
2
3
4
5
6
7
8
9
>>>

Python2:

>>> print(range(10))
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> print range(10)
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> a = range(10)
>>> print(a)
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Don't know your Python version, but mine works fine. Try specifying range(0,10) to be sure.