#include <iostream.h>
void divideData(const float number, int &integer, float &decimal); //分离出整数和小数部分.
void printBinaryForInteger(int &integer); //打印整数部分的二进制形式.
void printBinaryForDecimal(float &decimal); //打印小数部分的二进制形式.
int main()
{
float number;
int integer;
float decimal;
cout<<"Please input a decimal number for being converted: ";
cin>>number;
cout<<"/nThe binary number converted from your input "<<number<<" is: ";
divideData(number, integer, decimal);
printBinaryForInteger(integer);
if (integer==0) cout<<"0";
cout<<".";
printBinaryForDecimal(decimal);
cout<<endl;
return 1;
}
void divideData(const float number, int &integer, float &decimal)
{
integer = (int)number;
decimal = number - (float)integer;
}
void printBinaryForInteger(int &integer)
{
int k,a=0;
int b[32];
while (integer!=0)
{
k=integer%2;
b[a++]=k;
integer=integer/2;
}
while (a>0)
{
cout<<b[--a];
}
}
void printBinaryForDecimal(float &decimal)
{
int i=0;
int count=0;
int a[8]={0};
while (count<6) //小数部分取6位(也可用符号常量设置).
{
decimal*=2;
a[count++]=(int)decimal;
if (decimal>=1.0)
decimal-=1.0;
}
while (i<6)
{
cout<<a[i++];
}
}
//用于C编译器时略作修改;只考虑了输入数为正数.
