n为十六进制数
n=0x123654AAA678876303555111AAA77611A321 out='' bs='0'+bin(n)[2:] r='' def conv(s): return hex(int(s,2))[2:] for i in range(0,len(bs),2): if bs[i:i+2]=='01': r+='1' else: r+='0' for i in range(0,len(r),8): tmp=r[i:i+8][::-1] out+=conv(tmp[:4]) out+=conv(tmp[4:]) print("out:"+out.upper())