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Accepted
Kevin AB
Asked: 2020-07-15 17:41:40 +0800 CST 2020-07-15 17:41:40 +0800 CST

How to assign values ​​to multiple variables entered by keyboard?

  • 772

I want to do the following:

import sys

for line in sys.stdin:
    a,b,c,d=line.split(" ")
    e=(a+b+c+d)/6
    print(a,b,c,d,e)

I want a, b, cand dto be integers or float to be able to operate on e, I can put float(a), float(b), etc... but it is very laborious, is there a way to declare the variable as float, integer or whatever ?

I try to do:

 float(a), float(b), float(b), float,(d)=line.split(" ")
 a, b, c, d = float(line.split(" ")

Which is not correct. Doing the following I have no problems.

import sys

for line in sys.stdin:
    e = 0.0
    for res in line.split(" "):
        e = float(res) + e
        print(e)

But it seems to me many lines to be able to capture only a few numbers.

What method can I use to be able to capture the data?

In C I would do it like this:

float a, b, c, d;
scanf("%f%f%f%f", &a, &b, &c, &d);
python

1 Answers

  1. Best Answer

    On the line where you assign the values ​​you could use a comprehension or you can use map. For example, with mapwould be:

    import sys

for line in sys.stdin:
    a, b, c, d = map(float, line.split(" "))
    e = (a + b + c + d) / 6
    print(a, b, c, d, e)
    • 1