基于LINUX操作系统下的各种详细配置（如FTP

				一些进制转换的问题代码：
				#include 
				#include 
				#include 
				#include 
				using namespace std;
				void convert();
				void main()
				{
				convert();
				}
				void convert()
				{
				char a[100];
				int num,sum=0;
				int len;
				cout				gets(a);
				cout				puts(a);
				len=strlen(a);
				for (int i=0;i				{
				{
				num=(a[i]-48);
				num=num*pow(2,len-i-1);
				sum+=num;
				}
				}
				cout				}
				
				//十六进制转换为二进制
				CString DecimalToBinary(CString strDecimal)
				{
				int nDecimal = atoi(strDecimal.GetBuffer(0));
				int nYushu;
				int nShang;
				CString strBinary = "";
				char buff[2];
				CString str = "";
				BOOL bContinue = TRUE;
				while(bContinue)
				{
				nYushu = nDecimal%2;
				nShang = nDecimal/2;
				sprintf(buff,"%d",nYushu);
				str = strBinary;
				strBinary.Format("%s%s",buff,str);
				nDecimal = nShang;
				if(nShang==0)
				bContinue = FALSE;
				}
				
				return strBinary;
				}
				
				example：
				CString str("5a");
				CString strTemp, strRes="";
				int dwValue = strtoul(str, NULL, 16);
				strTemp.Format("%d", dwValue);
				strRes = DecimalToBinary(strTemp);
				
				//十进制转换为16进制
				如果想把一个10进制的数字转为 16 进制的串
				
				char buf[100];
				sprintf (buf,"%X",int10);
				
				//十六进制转换为十进制
				char *p="fe";
				char *str;
				int i = (int)strtol(p, &str, 16);