tools.cpp

本程序采用VC++和MySql编写的田间信息自动采集系统

// Tools.cpp: implementation of the CTools class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "RT.h"
#include "Tools.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CTools::CTools()
{

}

CTools::~CTools()
{

}

int CTools::StringToHex(CString str, CByteArray &senddata)
{
 	int hexdata = 0;
	int lowhexdata = 0;
	int hexdatalen = 0;
	int len=str.GetLength();
	senddata.SetSize(len/2);
	for(int i=0;i<len;)
	{
		char lstr,hstr=str[i];
		if(hstr==' ')
		{
			i++;
			continue;
		}
		i++;
		if(i>=len)
			break;
		lstr=str[i];
		hexdata=HexToChar(hstr);
		lowhexdata=HexToChar(lstr);
		if((hexdata==16)||(lowhexdata==16))
			break;
		else 
			hexdata=hexdata*16+lowhexdata;
		i++;
		senddata[hexdatalen]=(char)hexdata;
		hexdatalen++;
	}
	senddata.SetSize(hexdatalen);
	return hexdatalen;

}

char CTools::HexToChar(char hex)
{
   if((hex>='0')&&(hex<='9'))
		return hex-0x30;
	else if((hex>='A')&&(hex<='F'))
		return hex-'A'+10;
	else if((hex>='a')&&(hex<='f'))
		return hex-'a'+10;
	else 
		return (-1);
}



int CTools::StrToInt(CString str)
{
 int result = 0;
 int strLen = str.GetLength();
 bool mark = true;
 if(strLen==0) return result;
 for(int i=1;i<strLen-2;i++){
	 result=result*10+(int)str.GetAt(i);
 }
 if(str.GetAt(0)=='-'){
      return   -result;
 } else {
	  result=result*10+(int)str.GetAt(0);
 }
 return result;
}

float CTools::StrToFloat(CString str)
{
    int poitAt = str.FindOneOf(".");
	
	return StrToFloat(str,poitAt);
}

float CTools::StrToFloat(CString str, int nPoitAt)
{
  int strLen = str.GetLength();
  if(strLen==0||strLen<nPoitAt) return 0;
  return (float)StrToInt(str.Remove('.'))/EXP(10,nPoitAt-1);
}

int CTools::EXP(int x, int y)
{
 int result =x ;
 for(int i=0;i<y;i++)
	 result = result*x;
 return result;
}

float CTools::StrToFloatNo_Point(CString str,int nPointAt)
{
  return (float)StrToInt(str.Remove('.'))/EXP(10,nPointAt-1);
}

CString CTools::ACSIIToStr(int iAcsii)
{
  return "";
}



CString CTools::LongToCStr(long num)
{
  //long temp = 0;
  CString result;
  result.Format("%d",num);
  return result;
}


/*================================================================
       此方法仅用于将时间格式转化为字符串
  例如:形参为12,返回CString型的值12
       形参为8,返回CString型的值08
  提示:其他情况下,不要使用该成员函数.
================================================================*/       
CString CTools::IntToStr(int tempInt)
{
  CString result;
  result.Format("%d",tempInt);
  if(strlen(result)==1) result="0"+result;
  if(strlen(result)==4) result =result.Mid(2,2);
  return result;
}
/*=================================================================
         按字节异或运算

===================================================================*/

CString CTools::XOR(CString str)
{
 int len = strlen(str);
 if(len==0) return "00";
 char tempStr  ;
 //char tempStr2 ;
 tempStr = str.GetAt(0);
 int tempInt = tempStr;
 int tenpInt2 = 0; 
 
 for(int i=1;i<len;i++){
     tenpInt2 = str.GetAt(i);
     tempInt=tempInt ^ tenpInt2;
	 
 }
   CString result="";
   result=IntToHexType(tempInt);
   if(strlen(result)==1) result="0"+result;
   result.MakeUpper();
   return result;
}

CString CTools::IntToHexType(int iPara)
{

  CString result ;
  int temp =0;
  
  while(iPara>16){
	  temp = iPara%16;
	  iPara =iPara/16;
      result = intToHexStr(temp)+result;
  }
      result = intToHexStr(iPara)+result;
	return result;

}

CString CTools::intToHexStr(int iPara)
{
  if(iPara>15) return "";
  if(iPara<0) return "";
  CString result;
  switch(iPara){
	   case 1:
          result = "1";
		  break;
	   case 2:
          result = "2";
		  break;
	   case 3:
          result = "3";
		  break;
	   case 4:
          result = "4";
		  break;
	   case 5:
          result = "5";
		  break;
	   case 6:
          result = "6";
		  break;
	   case 7:
          result = "7";
		  break;
	   case 8:
          result = "8";
		  break;
	   case 9:
          result = "9";
		  break;
	   case 10:
          result = "A";
		  break;
	   case 11:
          result = "B";
		  break;
	   case 12:
          result = "C";
		  break;
	   case 13:
          result = "D";
		  break;
	   case 14:
          result = "E";
		  break;
		case 15:
          result = "F";
	
	 }
  return result;
}

CString CTools::IntToStr(int n, int nsize)
{
  CString result;
  result.Format("%d",n);
  int ns = strlen(result);
  if(ns>=nsize){
	  result.Mid(0,5);
  } else {
	  for(int i = 0;i<(5-ns);i++){
         result ="0"+result;
	  }
  }

  return result;
}