Python digital sum
The following examples are by user input two numbers, even numbers and calculate the sum of:
# -*- coding: UTF-8 -*-
# Filename : test.py
# author by : www.w3big.com
# 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))
Execute the above code output results:
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
In this example, we entered two user numbers by summation. Use the built-in function input () to get the user's input, input () returns a string, so we need to use float () method to convert a string to a number.
Two digital computing, we use the sum plus sign (+) operator, except addition, there is a minus sign (-), multiplication (*), the division sign (/), in addition to floor (//) or take the remainder ( %). More number crunching can see our Python digital operation .
We can also be more operations as a single line of code:
# -*- coding: UTF-8 -*-
# Filename : test.py
# author by : www.w3big.com
print('两数之和为 %.1f' %(float(input('输入第一个数字：'))+float(input('输入第二个数字：'))))
Execute the above code output results:
$ python test.py 输入第一个数字：1.5 输入第二个数字：2.5 两数之和为 4.0