进制转换

例子一：转成二进制

#include<iostream.h>

char a[]="01";

void tentotwo(unsigned int n)

{

if(n)

{

tentotwo(n/2);

cout<<a[n%2];

}

}

void main()

{

unsigned int m;

cin>>m;

tentotwo(m);

}

例子二 转成16进制

#include <iostream.h>

#include <string>

std::string DecToBin(unsigned int value)

{

unsigned int dm = 1 << 15;

char bin[17] = "";

for (int i = 1; i <= 16; i++)

{

bin[i - 1] = ( value & dm ? '1' : '0' );

value <<= 1;

}

return std::string(bin);

}

void main()

{

cout << DecToBin(960).c_str() << endl;

}