如何遍历嵌套的二进制数字列表并将其十进制数附加到列表中？例如：[[0,0,1,0,1],[1,0,0,0,1]]==[5, 17]

Question

binary_list = [['0', '0', '1', '0', '1'], ['1', '0', '1', '0', '1'], ['0', '0', '0', '0', '0'], ['0', '1', '0', '0', '1'], ['1', '1', '0', '0', '0'], ['0', '0', '1', '0', '1'], ['0', '0', '0', '1', '0'], ['0', '0', '1', '0', '0']]

cipher_value = []

cipher_num = 0

for list in binary_list:
        for num in range(len(list)):
         
            if num == 0 and list[num] == 1:
                cipher_num += 16
            elif num == 0 and list[num] == 0:
                continue
                
            if num == 1 and list[num] == 1:
                cipher_num += 8
            elif num == 1 and list[num] == 0:
                continue
                
            if num == 2 and list[num] == 1:
                cipher_num += 4
            elif num == 2 and list[num] == 0:
                continue
                
            if num == 3 and list[num] == 1:
                cipher_num += 2
            elif num == 3 and list[num] == 0:
                continue
            
            if num == 4 and list[num] == 1:
                cipher_num += 1
            elif num == 4 and list[num] == 0:
                continue
                
            cipher_value.append(cipher_num)
            cipher_num = 0
            break

Answer 1

对于列表中的每个元素，您可以使用 bit-shifting 将二进制表示形式转换为十进制整数。这具有能够处理可变数量的二进制数以及可变长度二进制数的优点：

binary_list = [['0', '0', '1', '0', '1'], ['1', '0', '1', '0', '1'], ['0', '0', '0', '0', '0'], ['0', '1', '0', '0', '1'], ['1', '1', '0', '0', '0'], ['0', '0', '1', '0', '1'], ['0', '0', '0', '1', '0'], ['0', '0', '1', '0', '0']]

cipher_values = []
for binary_repr in binary_list:
    cipher_num = 0
    for bit in binary_repr:
        cipher_num <<= 1
        cipher_num += int(bit)
    cipher_values.append(cipher_num)
print(cipher_values)

Answer 2

您可以使用int(..., 2)将数字的二进制表示形式（字符串类型）转换为整数。因此，在 join 和列表理解的帮助下：

cipher_value = [int(''.join(sublist), 2) for sublist in binary_list]
print(cipher_value) # [5, 21, 0, 9, 24, 5, 2, 4]

如何遍历嵌套的二进制数字列表并将其十进制数附加到列表中？例如：[[0,0,1,0,1],[1,0,0,0,1]]==[5, 17]

How do I iterate through nested lists of binary digits and append their decimal number to a list? ex: [[0,0,1,0,1],[1,0,0,0,1]]==[5, 17]

python

loops

encryption

binary