C 程序 八进制转换为二进制

该程序使用用户定义的函数将八进制数转换为二进制数。

示例：将八进制转换为二进制的程序

在这个程序中，我们创建了一个用户定义的函数octalToBinary()。此函数首先将八进制数（由用户输入）转换为十进制数，然后将该十进制数转换为二进制数。要了解该程序的工作原理，您应具备以下 C 编程主题的基本知识：

C – 函数C – while循环

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

输出：

Enter an octal number: 71Equivalent binary number is: 111001

看看这些相关的 C 程序：

C 程序：将二进制数转换为八进制数C 程序：将二进制转换为十进制C 程序：将十进制转换为八进制数C 程序：将小写字符串转换为大写字符串C 程序：将大写字符串转换为小写