我的十进制到二进制转换器有什么问题？

Question

我必须在不使用列表的情况下创建一个十进制到二进制转换器，但我的代码给出了错误的值，我不知道为什么。

def DecToBin(val):
    bine = 128
    counter = 8
    coded = 10
    binary = 0
    while val > 0 and bine != 0.5:
        if val < bine:
            bine = bine/2
            counter -= 1
        elif val > bine:
            val = val - bine
            binary = binary + (coded ^ counter)
            counter -= 1
            bine = bine/2
        elif val == bine:
            binary = binary + (coded ^ counter)
            counter = 0
            val = 0
    return binary

当输入值为 3 时，它给我 19。

Answer 1

你有两个问题。首先，python 幂运算符是** 而不是^。其次，bine 应该是 256，而不是 128 给定您的计数器值。您的代码应如下所示：

def DecToBin(val):
    bine = 256
    counter = 8
    coded = 10
    binary = 0
    while val > 0 and bine != 0.5:
        if val < bine:
            bine = bine/2
            counter -= 1
        elif val > bine:
            val = val - bine
            binary = binary + (coded ** counter)
            counter -= 1
            bine = bine/2
        elif val == bine:
            binary = binary + (coded ** counter)
            counter = 0
            val = 0
    return binary