Sum function in python

Sum is a very practical function in python, but pay attention to its usage. I used it for the first time: ssum (, 3) the result is tragic. actually, the sum () parameter is... sum is a very practical function in python, but pay attention to its usage. When I first used it, I used it like this:

S = sum (1, 2, 3)

The result is tragic.

In fact, the sum () parameter is a list

For example:

Sum ([1, 2, 3])

Sum (range (1, 11 ))

Another interesting usage

A = range (1, 11)

B = range (1, 10)

C = sum ([item for item in a if item in B])

Print c

Output:

45