char buf[132] = {'\0'};
string sFileName = argv[2];
FILE * fp = fopen(sFileName.c_str(),"r+t");
if(fp)
{
	while(!feof(fp))
	{
		fread(buf,sizeof(char),128,fp);
		sInfixExp = sInfixExp + buf;
		memset(buf,'\0',132);
	}
	
	fclose(fp);
}