一些常用的字符操作函数

#include <sstream>



template <class T> 
string ConvertToString(T value) {
	stringstream ss;
	ss << value;
	return ss.str();
}


string Align_Left(const string &showdata, int space )       
{
	//int spacelong=atoi(space.c_str());

	string Data_shown=showdata;

	for (unsigned int i=0;i<space-showdata.length();i++)
	{
		Data_shown+=" ";
	}
	Data_shown=Data_shown.substr(0,space);

	return Data_shown;

}


string Align_Right(const string &showdata, unsigned int space )
{
	//int spacelong=atoi(space.c_str());
	if (space< showdata.length())
	{
		cout<<"wrong!"<<endl;
	}
	string Data_shown=showdata;

	for (unsigned int i=0;i<space-showdata.length();i++)
	{
		Data_shown=" "+Data_shown;
	}
	Data_shown=Data_shown.substr(0,space);	
	return Data_shown;

}
string killblank(const string &text)
{
	string text_without_blank;
	string text_temp=text;

	while(text_temp.find(" ")!=string::npos)
	{
		text_without_blank+=text_temp.substr(0,text_temp.find_first_of(" "));
		text_temp=text_temp.substr(text_temp.find_first_of(" ")+1,text_temp.length()-text_temp.find_first_of(" ")-1);		
	}
	text_without_blank+=text_temp;	
	return text_without_blank;	
}