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Modular arithmetic the modulus operator模塊化算術模運算符

We have been doing arithmetic (addition, subtraction, multiplication, division) since elementary school, and often it is useful for us to find not the answer to a division problem but the remainder when we do a division operation. This operation is called the “modulus operation.” For example, when I divide 5 by 3, the remainder is 2, and the sentence reads like this: “5 modulo 3 is 2.”

In the Python shell:

>>> 5 % 3

>>> 6 % 3

>>> 7 % 3

The % sign is exactly the modulus operator.

從小學開始，我們就一直在進行算術運算（加，減，乘，除），這對於我們尋找除法問題不是答案，而是對除法運算的其餘部分有用。該操作稱為“模運算”。例如，當我將5除以3時，餘數為2，句子的內容如下：“ 5模3為2”。

在Python Shell中：

  
>>> 5 % 3
2
>>> 6 % 3
0
>>> 7 % 3
1

該%標誌是完全模運算符。

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