Python 3，将存储二进制数据的字符串转换为Int [英] Python 3, Converting a string storing binary data to Int

问题描述

我有一个等于"0b11001010"的变量Number，我希望它是int类型，就像存储普通二进制文件一样.0b11001010

I have the variable Number which is equal to "0b11001010" and I want it to be the type int like a normal binary is stored e.g. 0b11001010

Number = "0b11001010"
NewNumber = 0b11001010

有没有一种非常简单的方法，而我却忽略了它?

is there a really simple way and I am overlooking it?

谢谢.

推荐答案

在python中，您只能将其创建为二进制值(作为语法糖)，它将立即转换为整数.自己尝试一下:

In python you can only create it as a binary value (as a syntactic sugar), it will be converted into an integer immediately. Try it for yourself:

>>> 0b11001010
202

八进制和十六进制值也会发生相同的情况.因此，您可以使用 int()函数的 base 参数将二进制字符串转换为整数，例如:

The same thing will happen with octal and hexadecimal values. So you can convert your binary string to an integer, with the int() function's base argument like:

>>> int('0b11001010', 2)
202

转换后，您可以对其进行任何操作-就像整数一样，因为它是整数.

After the conversion you can do any operations on it -- just like with an integer, since it is an integer.

当然，您可以随时使用内置的 bin()函数将其转换回二进制字符串:

Of course you can convert it back at any time to a binary string, with the builtin bin() function:

>>> bin(202)
0b11001010

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