JumpStatement，新增枚举类型。

Apewer/AfterBehavior.cs

@@ -1,20 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace Apewer
-{
-
-    /// <summary>后续动作。</summary>
-    public enum AfterBehavior : int
-    {
-
-        /// <summary>打断。</summary>
-        Break = 0,
-
-        /// <summary>继续。</summary>
-        Continue = 1
-
-    }
-
-}

Apewer/JumpStatement.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Apewer
+{
+
+    /// <summary>跳转语句。</summary>
+    public enum JumpStatement : int
+    {
+
+        /// <summary>终止最接近的迭代。</summary>
+        Break = 0,
+
+        /// <summary>启动最接近的迭代。</summary>
+        Continue = 1,
+
+        // /// <summary>终止所在函数的执行，并将控制权和函数结果（若有）返回给调用方。</summary>
+        // Return = 2,
+
+        // /// <summary>将控制权转交给带有标签的语句。</summary>
+        // Goto = 3,
+
+    }
+
+}