How to sum two input numbers in python

How to input two numbers for sum in python: first use the input() function to receive the two numbers input from the keyboard; then use the float() function to uniformly convert the two received values ​​into floating point numbers; Then use the " " operator to add the two numbers to get an added value; finally use the print() function to output the value.

#The operating environment of this tutorial: Windows 7 system, Python 3 version, Dell G3 computer.

The user inputs two numbers and calculates the sum of the two numbers

# -*- coding: UTF-8 -*-

# 用户输入数字
num1 = input('输入第一个数字：')
num2 = input('输入第二个数字：')
 
# 求和
sum = float(num1) + float(num2)
 
# 显示计算结果
print('数字 {0} 和 {1} 相加结果为： {2}'.format(num1, num2, sum))

Output:

输入第一个数字：1.5
输入第二个数字：2.5
数字 1.5 和 2.5 相加结果为： 4.0

Related function description

The input() function in Python3.x accepts a standard input data and returns it as string type.

float() function is used to convert integers and strings into floating point numbers.

【Related recommendations: Python3 video tutorial】

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