##### numpy.位运算 ```python np.bitwise_and(x1, x2, /[, out, where, ...]) # 按位与 [ufunc] np.bitwise_or(x1, x2, /[, out, where, casting, ...]) # 按位或 [ufunc] np.bitwise_xor(x1, x2, /[, out, where, ...]) # 按位异或 [ufunc] np.invert(x, /[, out, where, casting, order, ...]) # 位反转 [ufunc] np.left_shift(x1, x2, /[, out, where, casting, ...]) # 左位移 [ufunc] np.right_shift(x1, x2, /[, out, where, ...]) # 右位移 [ufunc] ```