C 程序 二进制转换为八进制

来源:这里教程网 时间:2026-02-16 13:04:29 作者:

该 C 程序将二进制数转换为等效的八进制数。

示例:将二进制转换为八进制的程序

在该程序中,要求用户输入二进制数,然后程序通过调用用户定义的函数将该二进制数转换为八进制数。要理解这个程序,您应该熟悉以下C 编程概念:

    C – 函数C – while循环
#include <stdio.h>#include <math.h>//This function converts binary number to octal numberint binaryToOctal(long binarynum){    int octalnum = 0, decimalnum = 0, i = 0;    /* This while loop converts binary number "binarynum" to the     * decimal number "decimalnum"     */    while(binarynum != 0)    {        decimalnum = decimalnum + (binarynum%10) * pow(2,i);        i++;        binarynum = binarynum / 10;    }    //i is re-initialized    i = 1;    /* This loop converts the decimal number "decimalnum" to the octal     * number "octalnum"     */    while (decimalnum != 0)    {        octalnum = octalnum + (decimalnum % 8) * i;        decimalnum = decimalnum / 8;        i = i * 10;    }    //Returning the octal number that we got from binary number    return octalnum;}int main(){    long binarynum;    printf("Enter a binary number: ");    scanf("%ld", &binarynum);    // calling the function here    printf("Equivalent octal value: %d", binaryToOctal(binarynum));    return 0;}

输出:

Enter a binary number: 111001Equivalent octal value: 71

在这个程序中,我们首先将输入的二进制数转换为十进制数,然后我们将该十进制数转换为八进制数。

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