计算器python题

Question

I made a calculator in python but when I run it and do for example 123 and 321 I get 123321 instead of 444, What am I doing wrong?

import time
print("Calculator 1.0")
print("made by AnAwesomeMiner")
print("Number 1 in calculation")
x = input()
print("Number 2")
y = input()
print("calculating")
time.sleep(3)
print("why is this not done yet")
time.sleep(3)
print("god this is taking forever")
time.sleep(3)
print("done")
answear = x + y
print(answear)

Answer 1

input() returns string not number . That's why instead of addition , String concatenation is performed.

you need to use int(x) and int(y) for conversion.

use this statement answear = int(x) + int(y)

Answer 2

input returns a string, and when you combine two strings the result is what you are seeing.

>>> x = '123'
>>> y = '321'
>>> x+y
'123321'

So you need to convert them to an integer, like this:

answear = int(x) + int(y)

Answer 3

你可以使用这个：

y=int(input())

Answer 4

This is because you are declaring it as a string. Use a = int(input()) . This will cast it into an integer. If you want to insert a decimal number use the float data type.

Answer 5

input() accepts and returns a string object and you need to typecast this into an integer (or float) if you want to perform arithmetic operations on it. Performing a + operation on two strings merely concatenates them.

Answer 6

Instead of input(), use int(input()). This will tell Python that the user is about to enter an integer.

Answer 7

def main():

    def add(x,y):
        return x + y
    def sub(x,y):
        return x - y
    def mult(x,y):
        return x * y
    def div(x,y):
        return x / y
    def remainder(x,y):
        return x % y
    repeat=True
    while repeat:
        select=int(input("please select any operation:-\n 1.ADD\n2.SUBTRACT\n3.MULTIPLY\n4.DIVIDE\n5.REMAINDER\nselect here:-"))
        num1=int(input("Enter the first number"))
        num2=int(input("Enter the second number"))

        if select==1:
            print(num1,"+",num2,"=",add(num1,num2))
        elif select==2:
            print(num1,"-",num2,"=",sub(num1,num2))
        elif select==3:
            print(num1,"*",num2,"=",mult(num1,num2))
        elif select==4:
            print(num1,"/",num2,"=",div(num1,num2))
        elif select==5:
            print(num1,"%",num2,"=",remainder(num1,num2))
        else:
            print("invalid input")
        print("Do you want to calculate further?\n press y for continue.\n press any other key to terminate.")
        repeat="y" in str(input())
        if repeat=="y":
            print("Ooo yeh! you want to continue")
        else:
            print("Tnakyou")
main()

Answer 8

This is a simple problem to fix. When adding to integers or doing any other operation including an input and an int you need to do this:

y = int(input())
x = int(input())
a = y+x

so this put into your code looks like this:

import time
print("Calculator 1.0")
print("made by AnAwesomeMiner")
print("Number 1 in calculation")
x = int(input())
print("Number 2")
y = int(input())
print("calculating")
time.sleep(3)
print("why is this not done yet")
time.sleep(3)
print("god this is taking forever")
time.sleep(3)
print("done")
answear = x + y
print(answear)