diff --git a/version2.0/test.nas b/version2.0/test.nas
deleted file mode 100644
index 979d1ed..0000000
--- a/version2.0/test.nas
+++ /dev/null
@@ -1,116 +0,0 @@
-# basic type
-nil;
-2147483647;
-0x7fffffff;
-0xdeadbeef;
-0o70120327;
-"hello world!";
-'hello world!';
--12;
-!0;
--((30));
-[];
-{};
-[0,1,2,3,4,5][2];       # 2
-([0,1,2,3,4])[2];       # 2
-[0,1,2,3,4,5][5,4,3,2+1][0:2][0]; # 5
-{str:"hello"}.str;      # "hello"
-{str:"hello"}["str"];   # "hello"
-{"str":"hello\"\"\n"}["str"]; # "hello"
-20? 1:0;
-
-# normal scalar
-var number_1=1;
-var number_2=0xdeadbeef;
-var number_3=0x13702;
-var number_4=0.12341490239423;
-var string_1="hello";
-var string_2='hello';
-var string_3=number_1? 'yes':'no'; # yes
-
-# vector
-var vector_1=[];
-var vector_2=[0,1,2,"str",number_1,vector_1];
-var vector_3=vector_2[-3,-1];
-var vector_4=vector_2[0:3];
-var vector_5=vector_2[3:];
-
-# hash
-var hash_1={};
-var hash_2={str1:'str1', str2:'str2', num1:0x7fffffff};
-var hash_3={
- "member_1":1,
- "member_2":2,
- "member_3":3,
-};
-var hash_4={
- mem_1:hash_1,
- mem_2:hash_2.num1, # also this can be written as hash_2["num1"]
- mem_3:hash_3["member_1"]
-};
-
-# function
-var func_1=func(){return 1;}
-var prt=func(x){print(x);return nil;}
-var func_with_dynamic_id=func(a,b,c,d...){return [a,b,c,d];}
-var func_with_lack_para=func(a,b,c=1,d=2){return a+b+c+d;}
-var func_with_func_para=func(a,f){return f(a);}
-
-func_with_lack_para(a:1, b:2, c:3, d:4);
-func_with_lack_para(b:1, c:3, a:4, d:1);
-func_with_func_para(f:func prt,a:1);
-func_with_func_para(func func_1(),func(x){return x;});
-func_with_func_para(func_1(),func_1);
-prt(func func_1());
-var test_func_ret_number_1=func func_1(); # 1
-var test_func_ret_number_2=func_1();      # 1
-
-var source={
- member_1: func func_1(),         # this will get a number
- member_2: func {return 2.71828;} # this will get a function
-};
-print(source['member_2']());
-print(source.member_2());
-
-var test_func=func{return 1;}
-print(func test_func());       # 1
-print(test_func());            # 1
-print(func test_func);         # nothing
-print(test_func);              # nothing
-print(([0,1,2,3])[1]);         # 1
-print(({str:"what?"})["str"]); # what?
-print(({str:"what?"}).str);    # what?
-
-# lambda
-(func(x){return x>0? x:0;})(12);
-(func{print("hello world");})();
-(((func(x){return 1.0/math.exp(x);})))(0);
-
-# flexible definition & assignment
-var (r,g,b)=[0x00,0x10,0xff];
-(var r,g,b)=[0x00,0x10,0xff];
-var color=[0x00,0x10,0xff];
-var (r,g,b)=color;
-(var r,g,b)=color;
-(r,g,b)=(b,g,r);
-(number_1,number_2)=(number_2,number_1);
-
-# calculation
-1+1;
-1+1-2+3-4+5-6;
-1+1*8-9/3;
-1*-1;
-1*(1+2*(3+4*(5+6*(7+8*(9+10/(1+1))))));
-((-1*2+9))/7-1;
-((({num:2})))["num"]*2*2*2;
-((((([0,1,2])[0:2]))[0:2]))[1]-1;
-(((((((((((((((((((1+1+2+3+5)+8))+13)))+21))))+34)))))+55))))*89;
-number_1*(number_2+number_3)/90-number_4;
-(func test_func)()-1;
-hash_3.member_3+(func {return {what:"i don't tell you.",case_small:80,case_large:100}})["case_large"]/10;
--1*10+5 or 10-10;
-nil and 1+7*8;
-(number_1 or number_2) and (number_3 or number_4-number_4*1);
-[0,1,4,3,2][4]*2-4+1*2*2*2*2*2/8;
-{num:0}.num or {what_is_the_secret_of_universe:42}["what_is_the_secret_of_universe"];
-"123"~"456"-123456*2/2;
\ No newline at end of file