📌  相关文章
📜  C++程序将二进制数转换为八进制,反之亦然

📅  最后修改于: 2020-09-25 06:22:05             🧑  作者: Mango

在此示例中,您将学习通过创建用户定义的函数将二进制数转换为八进制,以及将八进制数手动转换为二进制。

示例1:将二进制转换为八进制的程序

在此程序中,我们将首先将二进制数字转换为十进制。然后,十进制数字转换为八进制。

#include 
#include 

using namespace std;

int convertBinarytoOctal(long long);
int main()
{
    long long binaryNumber;

    cout << "Enter a binary number: ";
    cin >> binaryNumber;

    cout << binaryNumber << " in binary = " << convertBinarytoOctal(binaryNumber) << " in octal ";

    return 0;
}

int convertBinarytoOctal(long long binaryNumber)
{
    int octalNumber = 0, decimalNumber = 0, i = 0;

    while(binaryNumber != 0)
    {
        decimalNumber += (binaryNumber%10) * pow(2,i);
        ++i;
        binaryNumber/=10;
    }

    i = 1;

    while (decimalNumber != 0)
    {
        octalNumber += (decimalNumber % 8) * i;
        decimalNumber /= 8;
        i *= 10;
    }

    return octalNumber;
}

输出

Enter a binary number: 10001
10001 in binary = 21 in octal

用户输入的二进制数将传递给convertBinaryToOctal() 函数。并且,此函数将数字转换为八进制并返回到main() 函数

示例2:将八进制转换为二进制的程序

在此程序中,八进制数首先转换为十进制。然后,将十进制数转换为二进制数。

#include 
#include 

using namespace std;

long long convertOctalToBinary(int);
int main()
{
    int octalNumber;

    cout << "Enter an octal number: ";
    cin >> octalNumber;

    cout << octalNumber << " in octal = " << convertOctalToBinary(octalNumber) << "in binary";

    return 0;
}

long long convertOctalToBinary(int octalNumber)
{
    int decimalNumber = 0, i = 0;
    long long binaryNumber = 0;

    while(octalNumber != 0)
    {
        decimalNumber += (octalNumber%10) * pow(8,i);
        ++i;
        octalNumber/=10;
    }

    i = 1;

    while (decimalNumber != 0)
    {
        binaryNumber += (decimalNumber % 2) * i;
        decimalNumber /= 2;
        i *= 10;
    }

    return binaryNumber;
}

输出

Enter an octal number: 54
54 in octal = 101100

用户输入的八进制数将传递给convertOctalToBinary() 函数。并且,此函数将数字转换为二进制并返回main() 函数