非十进制转十进制全代码

非十进制数转换为十进制数通常涉及到基数转换，特别是在计算机科学中处理二进制、八进制和十六进制等。这里是一个简单的Python示例，展示了如何将其他进制的数字转换为十进制：

def convert_base_to_decimal(input_string, base):
    if base == 2:  # Binary to Decimal
        return int(input_string, 2)
    elif base == 8:  # Octal to Decimal
        return int(input_string, 8)
    elif base == 16:  # Hexadecimal to Decimal
        return int(input_string, 16)
    else:
        raise ValueError("Unsupported base. Only binary (2), octal (8) and hexadecimal (16) are supported.")

# 示例
binary_num = "1010"
decimal_num = convert_base_to_decimal(binary_num, 2)
print(f"{binary_num} in decimal is {decimal_num}")

octal_num = "52"
decimal_num_octal = convert_base_to_decimal(octal_num, 8)
print(f"{octal_num} in decimal is {decimal_num_octal}")

hex_num = "A4"
decimal_num_hex = convert_base_to_decimal(hex_num, 16)
print(f"{hex_num} in decimal is {decimal_num_hex}")

在这个例子中，`convert_base_to_decimal`函数接受一个字符串表示的非十进制数以及它的基数，然后返回相应的十进制值。