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Python calculations mainly use Python operators. Let’s take a simple example: 4 5 = 9. In the example, 4 and 5 are called operands, and " " is called the operator.
The Python language supports a lot of operators. Here we only introduce the arithmetic operators used in calculations. (Recommended learning:Python video tutorial)
The following hypothetical variables: a=10, b=20:
| Operator |
Description |
Instance |
Multiply- Multiply two numbers or return a string repeated several times |
a * b The output result is 200 |
|
Divide - x divided by y |
b / a Output result 2 |
|
Modulo - Returns the remainder of division |
b % a Output result 0 |
|
| Power - Returns the y power of | #Round and divide - Return the integer part of the quotient (rounded down)
>>> 9//2 | 4
|
-5 |
# Example: #!/usr/bin/python# -*- coding: UTF-8 -*- a = 21b = 10c = 0 c = a + bprint "1 - c 的值为：", c c = a - bprint "2 - c 的值为：", c c = a * bprint "3 - c 的值为：", c c = a / bprint "4 - c 的值为：", c c = a % bprint "5 - c 的值为：", c # 修改变量 a 、b 、ca = 2b = 3c = a**b print "6 - c 的值为：", c a = 10b = 5c = a//b print "7 - c 的值为：", c The output result of the above example: 1 - c 的值为： 31 2 - c 的值为： 11 3 - c 的值为： 210 4 - c 的值为： 2 5 - c 的值为： 1 6 - c 的值为： 8 7 - c 的值为： 2For more Python-related technical articles, please visit the | Python Tutorial
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