a = -506298134
d = 6
d = a >> d & 0xFFFFFFFF
d = twos_comp(d, 32)
def twos_comp(val, bits):
"""compute the 2's complement of int value val"""
if (val & (1 << (bits - 1))) != 0: # if sign bit is set e.g., 8bit: 128-255
val = val - (1 << bits) # compute negative value
return val
d在-7910909
之后返回了我
使用JavaScript
a = -506298134
d = 6
d = a >>> d & 0xFFFFFFFF
d返回59197955
我可以做些什么来返回与python中javascript相同的值?
答案 0 :(得分:0)
>>>
是不进行符号扩展的,这是您可以在Python中通过将负数转换为正数并使用要处理的位数来获得的效果。因此,对于JavaScript,32位整数和无符号结果,只需在其前而不是后进行屏蔽:
a = -506298134
d = 6
d = (a & 0xFFFFFFFF) >> d
# d == 59197955