<qiyuangong>089_Gray_Code_2.py
def count_one( num):
    count = 0
    while num:
        num &= (num - 1)
        count += 1
    return count
def sample_funcname ( var_0 ) :
    var_2 = 0
    while var_0 :
        var_0 &= ( var_0 - 1 )
        var_2 += 1
    return var_2
