c语言/c++十进制转化为二进制的代码教程

：

#include<stdio.h>
int main()
{

       intnum,r;

       scanf("%d",&num);

       printf("%d的二进制数是：",num);

       while(num!=0)

       {     r=num%2;

              num=num/2;

              printf("%d",r);

       };

       printf("\n");

       return0;

}

(2)c++

#include<iostream>

using namespace std;

class c

{

       intnum;

public:

       c()

       {     cin>>num;}

       ~c(){}

       voidchange();

};

void c::change()

{ int r;

       cout<<"将"<<num<<"转换为二进制是：";

       while(num!=0)

       {    

              r=num%2;

              num=num/2;

              cout<<r;

       };

       cout<<endl;

}

 

int main()

{ c c1;

c1.change();

return 0;

}