**数学运算符在Python中做什么? [英] What does the ** maths operator do in Python?

问题描述

这在Python中是什么意思:

What does this mean in Python:

sock.recvfrom(2**16)

我知道袜子是什么，我了解了recvfrom函数的要旨，但是2**16到底是什么?具体来说，两个星号/双星号运算符?

I know what sock is, and I get the gist of the recvfrom function, but what the heck is 2**16? Specifically, the two asterisk/double asterisk operator?

(英文关键字，因为很难搜索:倍数星号星号-星号双倍数双星号双星运算符)

推荐答案

这是电力运营商.

从Python 3文档中:

From the Python 3 docs:

幂运算符的语义与内置的 pow()函数，当使用两个参数调用时:将其左参数提升为右参数的幂.首先将数字参数转换为通用类型，然后结果就是该类型.

The power operator has the same semantics as the built-in pow() function, when called with two arguments: it yields its left argument raised to the power of its right argument. The numeric arguments are first converted to a common type, and the result is of that type.

相当于2 ¹⁶ = 65536，或pow(2, 16)

It is equivalent to 2¹⁶ = 65536, or pow(2, 16)

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