用“栈”实现进制转换

string dec2base(int num,int base)
{
	string digitChar = "0123456789ABCDEF";
	string numStr = "";
	LStack<char> stk;
	//求余直至余数为0
	do
	{
		//将余数压入栈
		stk.push(digitChar[num%base]);
		num/=base;
	}
	while (num!=0);
	//将余数堆栈出栈并附到结果字符串中
	char temp;
	char old;
	while (stk.length()!=0)
	{
		
		stk.topValue(temp);
		numStr+=temp;
		stk.pop(old);
	}
	return numStr;
}