Data Storage Basic

Today in office I learned some basic data type "List" &"Tuple" , "Dict" &“set" 

List is easy to understand and we used a lot in Java and you can get List(-1) which is pretty interesting and I think we seldom use before

And it is flexible you can put List in List and get a element by using List[0][2]

There is no duplicated value in set

In order to write a English dialog more smoothly I googled some English docs and find something more about List

** operator to calculate powers

>>> 2**7 # 2 to the power of 7   which is 128

https://docs.python.org/3/tutorial/introduction.html#lists

We can also do some calculation and let the game start

a,b = 0,1

while a <20 :

print ('a=', a)

a,b = b, a+b

print(' b=' , b)

end can be used to avoid the newline after the output

so we can change it to print('b=' , b, end=';')

after that we can define a function and put everything above in it 

def cauculate(a,b) : 

There are many argument values you can put in the function