testproject.cpp

标准C++编写的小小CRM软件,无任何平台依赖.采用标准XML作为数据库.只需重新纺译,可在任何平台上运行.目前测试过在GCC和VC下都可以编译通过

// multimap_find.cpp
// compile with: /EHsc
#include <map>
#include <iostream>
#include <conio.h>
#include <string>

using namespace std;

/* try to use substr 
int main()
{
	string str( "  <Customer id=\"1024\" weight=\"3\">" );
	basic_string<char>::size_type pos1,pos2;

	cout << str << endl;
	pos1 = str.find( '<' );
	pos2 = str.find( ' ', pos1 );
	cout << pos1<< ',' << pos2 << '\t' 
		<< '.'<<str.substr( pos1, pos2 - pos1 ) << '.'<< endl;
	pos1 = str.find( "id", pos2 );
	pos2 = str.find( ' ', pos1 ) ;
	cout << pos1<< ',' << pos2 << '\t' 
		<< '.'<<str.substr( pos1, pos2 - pos1 ) << '.' << endl;
	pos1 = str.find( "weight", pos2 );
	pos2 = str.find( '>', pos1 ) ;
	cout << pos1<< ',' << pos2 << '\t'
		<< '.'<< str.substr( pos1, pos2 - pos1 ) << '.' <<endl;
	cout << pos1<< ',' << pos2 << '\t' 
		<< '.'<<str.substr( pos1 ) << '.' << endl;
	getch();
	return true;
}*/
/* try to use multimap
int main( )
{
   using namespace std;
   multimap <int, int> m1;
   multimap <int, int> :: const_iterator m1_AcIter, iter;
   typedef pair <int, int> Int_Pair;

   m1.insert ( Int_Pair ( 1, 10 ) );
   m1.insert ( Int_Pair ( 2, 20 ) );
   m1.insert ( Int_Pair ( 3, 20 ) );
   m1.insert ( Int_Pair ( 3, 30 ) );

   for( iter = m1.begin(); iter != m1.end(); ++iter ){
		cout<< iter->first << '\t' 	<< iter->second<<endl;
		getch();
   }
   getch();
   return true;
}
*/
/*
int main()
{
	fstream projFile( "project.xml", ios_base::in | ios_base::out );
	string proj("Aisa");

	projFile.seekg( -15, ios_base::end );
    projFile<<'<'<<proj<<'>'<<1025<<"</"<<proj<<'>'<<endl;
	projFile<<"</Project_File>"<<endl;

	return true;
}
*/
/*	Try read and write file with C FILE type.
void readFile();
void writeFile( const string& buf, int pos );
int main()
{
	string proj("America");
	FILE*  projFile;
	//FILE*  forwardPos;
	basic_string <char>::iterator iter;
	string buf;
	int   pos1,pos2;
	char  ch;

	if( (projFile=fopen( "project.xml","r+" ))==NULL ){
		cerr<<"open project define file error."<<endl;
		return false;
	}
	while( (ch=fgetc(projFile))!=EOF ){
		pos1 = ftell( projFile ) ;
		if( ch=='<' ){
			buf.clear();
			while( (ch=fgetc(projFile))!='>' )
			{	buf += ch;		}
			if( buf==proj ){
				while( (ch=fgetc(projFile))!='<' ){		}
				while( (ch=fgetc(projFile))!='>' ){		}
				buf.clear();
				while( (ch=fgetc(projFile))!=EOF )
				{	buf += ch;	}
				pos2 = ftell( projFile );
				/*
				fseek( projFile, -(pos2-pos1+1), 1 );
				for( iter=buf.begin(); iter!=buf.end(); iter++ ){
					fputc( *iter, projFile );
				}
				fputc( EOF, projFile );
				fputc( '\n', projFile );	
				fclose( projFile );
				writeFile( buf, pos1 );
				break;
			}
		}
	}
	readFile();
	getch();
	return true;
}

void writeFile( const string& buf, int pos )
{
	basic_string<char>::const_iterator iter;
	ofstream os;
	os.open( "project.xml" );
	os.seekp( pos );

	for( iter=buf.begin(); iter!=buf.end(); iter++ )
	{	os.put( *iter );	}
}
void readFile(){
	char ch;
	ifstream is;
	is.open( "project.xml" );
	while( is>>ch ){
		cout<<ch;
	}
}
*/
/* test read and write a file same time, false result. bad fstream.
void readFile(  );
void writeFile(  );

fstream fstr;

int main()
{
	cout<<"write file:"<<endl;
	writeFile();
	cout<<"read file:"<<endl;
	readFile();
	cout<<"read file:"<<endl;
	readFile();
	getch();
	return true;
}

void writeFile(  )
{
	fstr.open( "test.txt" ,ios::out );
	fstr<<"Thank you.";
	fstr.close();
}

void readFile(  )
{
	char ch;

	fstr.open( "test.txt", ios::in );
	while( fstr>>ch )
	{	cout<< ch;	}
	cout<<endl;
	fstr.close();
}
*/