diff --git a/funcext/tvclib/utslvclauxiliary.tsf b/funcext/tvclib/utslvclauxiliary.tsf
index 546f914..76c8a68 100644
--- a/funcext/tvclib/utslvclauxiliary.tsf
+++ b/funcext/tvclib/utslvclauxiliary.tsf
@@ -934,7 +934,7 @@ type tnumindexarray = Class() //栈模
         len := fdlength;
         for i := len-1 downto 0 do
         begin
-            if v=FData[i]then return i;
+            if v=FData[i] then return i;
         end
         return -1;
     end
@@ -1005,11 +1005,13 @@ type tnumindexarray = Class() //栈模
         if not(vs) and length(vs) then return r;
         r := fdlength;
         r1 := r;
-        for i := 0 to length(vs)-1 do
-        begin
-            FData[r]:= vs[i];
-            r++;
-        end
+        FData union=vs;
+        r := length(FData);
+        //for i,v in vs do //20230724 修改 减少循环
+        //begin
+        //    FData[r]:= v; 
+        //    r++;   
+        //end 
         fdlength := r;
         if r1 <> r then LengthChanged(r1-r);        
         return r;
@@ -1055,6 +1057,16 @@ type tnumindexarray = Class() //栈模
         if len <>  fdlength then LengthChanged(fdlength-len);
         return r;
     end
+    function set_len(n); //设置长度
+    begin
+        if fdlength<>n and n>=0 then 
+        begin
+            ol := fdlength;
+            fdlength := n;
+            FData := nils(n);  
+            LengthChanged(n-ol);  
+        end          
+    end
     function LengthChanged(n);virtual;
     begin
     end
@@ -1729,6 +1741,7 @@ type TTire = class
         FSub;
         FEnd;
         Ficase;
+        _tag;
         function Create(v);
         begin
             FChar := v;  
@@ -1749,10 +1762,11 @@ type TTire = class
             end 
             ls := length(s);
             if ls>1 then 
-                vsub.Add(s[2:]);
+                return vsub.Add(s[2:]);
             else 
             begin
                 vsub.FEnd := true;
+                return vsub;
             end 
         end 
         function Find(s,slen,idx);
@@ -1768,6 +1782,19 @@ type TTire = class
             end 
             return FEnd ;
         end  
+        function find_node(s,slen,idx);
+        begin
+            if idx>slen then return (FEnd?self:0);
+            v0 := s[idx];
+            if Ficase then v0 := lowercase(v0);
+            vsub := FSub[v0]; 
+            if vsub then 
+            begin
+                idx++;
+                return vsub.find_node(s,slen,idx);
+            end 
+            return (FEnd?self:0);    
+        end 
         function seticase(i);
         begin
             ni := i?true:false;
@@ -1793,7 +1820,7 @@ type TTire = class
     end 
     function Add(s);
     begin
-        FRoot.Add(s);
+        return FRoot.Add(s);
     end 
     function Create();
     begin
@@ -1801,6 +1828,11 @@ type TTire = class
         FRoot := new TTireNode();
         FRoot.Ficase := false;
     end 
+    function find_node(s,oidx);
+    begin
+        oidx := 1;
+        return  FRoot.find_node(s,length(s),oidx);        
+    end 
     function Find(s,slen,idx,outidx,ostr);
     begin
         tid := idx;
@@ -2275,9 +2307,7 @@ type tstr_step_match=class()
     **}
     function create(its); //送入匹配的字符串数组
     begin
-        fits := array();
-        findstaks := array();
-        findidxs := array(""); 
+        fits := array();        
         set_items(its);
     end 
     function step_find_idx(s:string); //匹配的序号
@@ -2287,34 +2317,19 @@ type tstr_step_match=class()
         @param(s)(string) 匹配的目标 %%
         @return(array of integer) 成功的位置 %%
         **}
-        idx := 0;
-        d := getsdata(s);        
-        if ifarray(d)  then return d;   //已经存在了,返回
-        for i := 1 to length(s) do  //失效判断
+        if not ftree then return array();
+        o := ftree.find_node(s,idx);
+        if o and ((idx-1)=length(s)) then return o._tag;
+        if not o then o := ftree.FRoot;
+        for i := idx to length(s) do 
         begin 
             si := s[1:i];
-            if findidxs[i]<>si then //判断失效位置
-            begin 
-                findidxs := findidxs[0:(i-1)];  
-                break; 
-            end             
+            oi := ftree.add(si);
+            asi := get_same_idexs(si,o._tag);           
+            oi._tag := asi;
+            o := oi;           
         end 
-        for i:= length(findidxs) to  length(s) do //从有效位置开始处理
-        begin 
-            si := s[1:i];
-            asi := array();
-            asidx := 0;
-            for ii,v in  findstaks[i-1] do  //判断每个值
-            begin 
-                if checksame(si,v) then 
-                begin 
-                    asi[asidx++] := v;    
-                end 
-            end 
-            findstaks[i] := asi; //得到新的值
-            findidxs[i] := si; 
-        end 
-        return   findstaks[length(findidxs)-1];//fits[];
+        return o._tag;
     end 
     function step_find(s); //查找匹配的字符
     begin 
@@ -2325,11 +2340,24 @@ type tstr_step_match=class()
         if fits<> its and check_legal(its) then 
         begin 
             fits := its;
-            findstaks := array(0->(length(fits)-1));
-            findidxs := array(""); 
+            ftree := new TTire();
+            ftree.FRoot._tag := mrows(fits,1);
         end 
     end 
     private 
+    function get_same_idexs(si,idxs);virtual; //直接判断全部
+    begin
+        asi := array();
+        asidx := 0;
+        for ii,v in idxs do 
+        begin
+            if checksame(si,v) then 
+            begin 
+                asi[asidx++] := v;    
+            end 
+        end 
+        return asi;     
+    end 
     function checksame(a,b);virtual;//判断相等
     begin 
         return pos(a,fits[ b]);
@@ -2338,17 +2366,10 @@ type tstr_step_match=class()
     begin
         return ifarray(its);
     end 
-    function getsdata(s);//获取成功的位置
-    begin 
-        for i,v in findidxs do 
-        begin 
-            if v=s then return findstaks[i];
-        end 
-    end 
-    private 
+    protected
     fits; //原始数据
-    findstaks; //历史匹配记录
-    findidxs;//字符串 
+    ftree;
+    private     
 end 
 implementation
 function iffuncptr(fn);
diff --git a/funcext/tvclib/utslvclstdctl.tsf b/funcext/tvclib/utslvclstdctl.tsf
index da3fb0c..a3d3954 100644
--- a/funcext/tvclib/utslvclstdctl.tsf
+++ b/funcext/tvclib/utslvclstdctl.tsf
@@ -3801,7 +3801,8 @@ type TcustomListBox=class(TCustomListBoxbase)
     end
     function clean();virtual;
     begin
-        FitemData.splice(0,FitemData.Length());
+        //FitemData.splice(0,FitemData.Length());
+        FitemData := new tnumindexarray();
         cleanAllSelectedState();
         class(TCustomListBoxbase).ItemCount := 0;
     end
@@ -3827,11 +3828,14 @@ type TcustomListBox=class(TCustomListBoxbase)
     protected
     function CheckListItems(s);
     begin
-        if ifarray(s)then
+        if ifarray(s) then
         begin
-            for i := 0 to length(s)-1 do if not CheckListItem(s[i])then return 0;
+            if ((thisfunction(class(TcustomListBox).checklistitem))<>(thisfunction(self.checklistitem))) then 
+            begin 
+                for i,v in s do if not CheckListItem(v) then return 0;
+            end 
             return 1;
-        end else
+        end 
         return 0;
     end
     function CheckListItem(s);virtual;