ActionScript and javascript supports >>> operator. I am converting an actionscript of base64 encoding/decoding using python. I know base64 is available and this is for learning purpose. python doesn t have "..." operator. base64 action script
缩略语
我如何将这些路线转化为on?
IINM, >>> is a right change that conservations the Value of the residueest bit. 这样做的效果是保持编号不变(即负数被插入1个,作为最高会计准则理事会,而不是0个)。
In Python, integers can be arbitrarily big. There is no meaningful concept of a most significant bit since the number of bits is not bounded. Right shifts therefore simply shift all bits to the right and preserve the sign. So, in Python you can just use >>.
Edit:
如@Sven Marnach所指出的,>>>的操作与我在Javascript中认为的恰恰相反。 因此,>>>并不保存签名,而>>似乎是这样。 另一个令人感兴趣的事实是,显然-1>>1 是-1,而不是0 in Javascript. 不用说,我对贾瓦特的了解确实有限,我无法确定这些经营者的确切等同之处是什么。
一种选择是,明确限制使用多少比额(或许使用<条码>c 类型.c_int),然后按照用户界定的权责转移功能的要求,以人工方式确定左边多数。
import ctypes
#convert signed to unsigned
bits = ctypes.c_uint32(bits).value
o1 = bits >> 16 & 0xff
o2 = bits >> 8 & 0xff
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