将Hex Chars转换为比特串(Python或Ruby)

def hex_to_bits(hex_str):
    bits = bin(int(hex_str, 16))[2:]
    return bits.zfill(len(hex_str) * 4)

hex_str = "4A3B"
bits = hex_to_bits(hex_str)
print(bits)

def hex_to_bits(hex_str)
    bits = hex_str.to_i(16).to_s(2).rjust(hex_str.length * 4, '0')
    return bits
end

hex_str = "4A3B"
bits = hex_to_bits(hex_str)
puts bits