将一个数字，转换成二进制数字

import numpy as np

NUM_DIGITS = 10

def binary_encode(i, num_digits):
    return np.array([i >> d & 1 for d in range(num_digits)][::-1])

if __name__ == '__main__':

    print(binary_encode(15, NUM_DIGITS))

结果：[0 0 0 0 0 0 1 1 1 1]