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This article mainly introduces "how to use the arithmetic operation and input and output in python". In the daily operation, I believe that many people have doubts about how to use the arithmetic operation and input and output in python. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful for everyone to answer the doubt of "how to use the arithmetic operation and input and output in python". Next, please follow the editor to study!

First, arithmetic operation

The symbol of multiplier operation in python is *, which is special. As an operator,% means to find the remainder or modular operation. / / indicates floor division, that is, rounding down after division operation. Many commonly used functions are in the module math, such as the factorial function math.factorial ().

Two, input and output 1, input

2, output

Third, thinking practice

3, how to output the decimal as a percentage? (tip:'%% 'can be used to output a percent sign in a formatted string.)

(reply keyword python03 for reference answer)

4. Try to execute the statements' hello' + 'world' and' abc' * 3. What did you find?

(reply keyword python04 for reference answer)

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