hi, >>> bin(0xff0) '111111110000' >>> bin(0xff1) '111111110001' >>> a=bin(0xff0)+bin(0xff1) >>> a '111111110000111111110001' >>> b=0xff0 >>> c=0xff1 >>> d=b+c >>> d 8161 >>> bin(d) '1111111100001' question: 1) why is it that a and d values are different? i'm using Python 2.5. 2) how to convert hex to bin in Python 2.5? thanks tcl
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