英文:
Go "&^" operator, what does it mean?
问题
我正在努力理解Go语言中的&^和&^=运算符的含义。我在文档中找不到答案（文档中说明它是一个位清除运算符，但对我来说并没有太大帮助），也没有通过尝试找到答案。
特别是，我想知道Python中是否有相应的等价运算符。
英文:
I am struggling to understand what the &^ and &^= operators mean in Go. I cannot find an answer either in the documentation (which states it's a bit clear operator, but it does not help me much) or by trials.
In particular, I want to know if there is an equivalent in Python.
答案1
得分: 8
这些是“AND NOT”或“位清除”运算符，对于清除左操作数中在右操作数中设置的位非常有用。
我将“有用”用引号括起来，因为所有从C语言派生位运算的其他语言都是使用位与&和位非~来实现这一点；因此，在Python中，5 &^ 2就等同于5 & ~2；而在Python中，Go语言中的a &^= 3就等同于a &= ~3。
英文:
These are the "AND NOT" or "bit clear" operators, "useful" for clearing those bits of the left-hand side operand that are set in right-side operand.
I put the "useful" in quotes since all other languages that derive the bitwise operations from C one does this with bitwise AND & and bitwise NOT ~; thus 5 &^ 2 would be just 5 & ~2 in Python; and a &^= 3 of Go would be a &= ~3 in Python.
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