39 lines
1.4 KiB
Python
39 lines
1.4 KiB
Python
def reverse_bits(decimal_num):
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# 将十进制数转换为二进制字符串，并去掉"0b"
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binary_str = bin(decimal_num & 0xFF)[2:] # 确保只取8位
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# 使用零填充到8位
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padded_binary_str = binary_str.zfill(8)
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# 颠倒二进制字符串
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reversed_binary_str = padded_binary_str[::-1]
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return padded_binary_str
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def to_signed_decimal(binary_str):
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# 将二进制字符串转换为有符号十进制数
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if binary_str[0] == '1':
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# 如果最高位是1，表示是负数
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return int(binary_str, 2) - (1 << len(binary_str))
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else:
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return int(binary_str, 2)
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def main():
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# 输入三个十进制数
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numbers = []
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for i in range(1, 4):
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num = int(input(f"请输入第{i}字节小端数: "))
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numbers.append(num)
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# 存储所有颠倒后的二进制结果
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combined_binary = ""
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for num in numbers:
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reversed_bin = reverse_bits(num)
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combined_binary += reversed_bin
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print(f"合并后的颠倒二进制数: {combined_binary}")
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# 将合并后的二进制字符串转换为有符号十进制
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signed_decimal = to_signed_decimal(combined_binary)
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print(f"合并后的颠倒二进制数对应的有符号十进制数: {signed_decimal}")
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print(f"电压值: {signed_decimal/8388607*2.5*4}")
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if __name__ == "__main__":
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main() |