diff --git a/DeedyDesigner/Deedy.Testing/App.xaml.cs b/DeedyDesigner/Deedy.Testing/App.xaml.cs
index f2ccd89..72bfa28 100644
--- a/DeedyDesigner/Deedy.Testing/App.xaml.cs
+++ b/DeedyDesigner/Deedy.Testing/App.xaml.cs
@@ -21,9 +21,14 @@ Func Add var1x var2x
     math AddResult @var1x 777 + @var2 - @var2x -
     retu AddResult
 EndF
-
+//调用自定义方法
 Call Add @var1 99
 PopV result
+ifth true 4 3 <
+    letp result 248
+else
+    letp result 80
+endi
 ";
             Todo todo = new Todo();
             todo.Init(script);
diff --git a/DeedyDesigner/Deedy.Testing/Dodo.cs b/DeedyDesigner/Deedy.Testing/Dodo.cs
index 42684ab..4655341 100644
--- a/DeedyDesigner/Deedy.Testing/Dodo.cs
+++ b/DeedyDesigner/Deedy.Testing/Dodo.cs
@@ -158,7 +158,7 @@ namespace Deedy.Testing
             for (int lineNum = 0; lineNum < cmdLines.Length; lineNum++)
             {
                 string command = cmdLines[lineNum].Trim();
-                if (!string.IsNullOrEmpty(command)) this.Script.Add(command);
+                if (!string.IsNullOrEmpty(command) && !command.StartsWith('/')) this.Script.Add(command);
             }
         }
         /// <summary>
@@ -231,6 +231,7 @@ namespace Deedy.Testing
                             case "endi": this.CmdC_EndI(); break;
                             case "endw": this.CmdC_EndW(); break;
                             case "reen": this.CmdC_Reen(); break;
+                            case "else": this.CmdC_Else(); break;
 
                             case "func": this.CmdI_Func(cmdArgs); break;
                             case "call": this.CmdI_Call(cmdArgs); break;
@@ -246,7 +247,7 @@ namespace Deedy.Testing
                             case "push": this.CmdS_Push(cmdArgs); break;
                             case "popv": this.CmdS_PopV(cmdArgs); break;
 
-                            default: break;
+                            default: this.Control_CurrentLine++; break;
                         }
                         break;
                     case Mode.Reentry:                  // 重启脚本逻辑
@@ -410,6 +411,19 @@ namespace Deedy.Testing
             //HACK：如果需要支持代码块级局部变量则需要在此处闭合代码块
         }
         /// <summary>
+        /// 条件执行的「Else」逻辑
+        /// </summary>
+        protected void CmdC_Else()
+        {
+            this.Control_CurrentLine++;
+            while (this.Control_CurrentLine < this.Script.Count)
+            {
+                string cmd = Pre_Hand(this.Script[this.Control_CurrentLine]);
+                if (cmd == "endI") break;
+                else this.Control_CurrentLine++;
+            }
+        }
+        /// <summary>
         /// $>> 跳转到指定的指令序列位置
         /// <para>注意：跳转指令不会超出「Funcation」范围；如果超出，引擎会自动修正</para>
         /// </summary>
@@ -475,7 +489,11 @@ namespace Deedy.Testing
                     if (!funcHandle.LocalParams.TryAdd(paramDefine[0].TrimStart('@'), paramValue))
                         funcHandle.LocalParams[paramDefine[0].TrimStart('@')] = paramValue;
                 }
-                else this.CmdI_VarP(cmdArgs ?? "");
+                else
+                {
+                    this.CmdI_VarP(cmdArgs ?? "");
+                    return;     // 由于「CmdI_VarP」方法已经变更脚本指令“游标”，所以此处直接返回
+                }
             }
             this.Control_CurrentLine++;
         }
@@ -881,16 +899,17 @@ namespace Deedy.Testing
         /// <returns>表达式的真值，如果表达式有误则返回指定的值</returns>
         private bool CmdP_Cond(string condition)
         {
-            bool result = true;
+            bool result = false;
             Stack<object> stack = [];
             string[] conParts = condition.Split(' ', options: StringSplitOptions.RemoveEmptyEntries);
             if (conParts.Length > 0)
             {
-                result = bool.Parse(conParts[0].ToLower());
-                int index = 0;
+                _ = bool.TryParse(conParts[0], out result);
+                if (conParts.Length == 1) return result;
+
+                int index = 1;
                 while (index < conParts.Length)
-                {
-                    index++;
+                {                    
                     switch (conParts[index])
                     {
                         case "!": this.Cond_Nega(stack); break;
@@ -908,6 +927,7 @@ namespace Deedy.Testing
 
                         default: stack.Push(conParts[index]); break;
                     }
+                    index++;
                 }
             }
             if (stack.Count > 0) result = this.Val_Boolean(stack.Pop());
@@ -1056,8 +1076,8 @@ namespace Deedy.Testing
         /// 设置参数表中的一个参数
         /// <para>备注：先去局部变量中查找，再去全局变量中查找，最后去外部引用变量中查找</para>
         /// </summary>
-        /// <param name="paramName"></param>
-        /// <param name="paramValue"></param>
+        /// <param name="paramName">变量名称</param>
+        /// <param name="paramValue">变量的值，支持引用</param>
         private void ParamSetter(string paramName, object paramValue)
         {
             //HACK：暂时不支持代码块级的局部变量
@@ -1093,9 +1113,9 @@ namespace Deedy.Testing
         /// 从参数表中获取参数
         /// <para>备注：先去局部变量中查找，再去全局变量中查找，最后去外部引用变量中查找</para>
         /// </summary>
-        /// <param name="paramName"></param>
-        /// <param name="default"></param>
-        /// <returns></returns>
+        /// <param name="paramName">变量名称</param>
+        /// <param name="default">默认值</param>
+        /// <returns>如果找不到变量则返回默认值</returns>
         private object ParamGetter(string paramName, object @default)
         {
             //HACK：暂时不支持代码块级的局部变量