How to return more than one value from a function

问题:

This question already has an answer here:

• What's the best way to return multiple values from a function in Python? 5 answers

How to return more than one variable from a function in Python?

回答1:

You separate the values you want to return by commas:

def get_name():
   # you code
   return first_name, last_name

The commas indicate it's a tuple, so you could wrap your values by parentheses:

return (first_name, last_name)

Then when you call the function you a) save all values to one variable as a tuple, or b) separate your variable names by commas

name = get_name() # this is a tuple
first_name, last_name = get_name()
(first_name, last_name) = get_name() # You can put parentheses, but I find it ugly

回答2:

Here is also the code to handle the result:

def foo (a):
    x=a
    y=a*2
    return (x,y)

(x,y) = foo(50)

回答3:

Return as a tuple, e.g.

def foo (a):
    x=a
    y=a*2
    return (x,y)