Add files via upload

Add more functions.

lab.cpp

@@ -0,0 +1,43 @@
+#include <iostream>
+#include "var.h"
+using namespace nasal;
+
+int main()
+{
+	PrintString("This is a testing programme. \n");
+	NasalHash m;
+	int a=1;
+	std::string k="hello world!";
+	PrintString(k);
+	m.Append("first",&a,"int");
+	m.Append("second",&a,"int");
+	m.Append("third",&k,"string");
+	m.PrintHash();
+	std::cout<<std::endl;
+	PrintVar(m);
+	std::cout<<std::endl;
+	
+	NasalList n;
+	n=m.Keys();
+	n.PrintList();
+	std::cout<<std::endl;
+	PrintVar(n);
+	std::cout<<std::endl;
+	
+	m.Delete("fifth");
+	m.Delete("second");
+	m.PrintHash();
+	
+	n=m.Keys();
+	std::cout<<std::endl;
+	n.PrintList();
+	std::cout<<std::endl;
+	
+	//n.Append(&n,"array","n");//cause infinite loop
+	n.Append(&n,"array");
+	n.Append(&n,"array");
+	n.PrintList();
+	std::cout<<std::endl;
+	
+	return 0;
+}