diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 6ff9221..58cfe2b 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -6,7 +6,6 @@
   <component name="ChangeListManager">
     <list default="true" id="f609c0f2-cd0d-4eea-87f1-8caf02d3f04f" name="Changes" comment="">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/frame/ContentView.py" beforeDir="false" afterPath="$PROJECT_DIR$/frame/ContentView.py" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/graph/directed_acyclic_graph/DAGLayout.py" beforeDir="false" afterPath="$PROJECT_DIR$/graph/directed_acyclic_graph/DAGLayout.py" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
diff --git a/graph/directed_acyclic_graph/DAGLayout.py b/graph/directed_acyclic_graph/DAGLayout.py
index a3fca1c..9cafcb5 100644
--- a/graph/directed_acyclic_graph/DAGLayout.py
+++ b/graph/directed_acyclic_graph/DAGLayout.py
@@ -1,5 +1,6 @@
 from graph.DataType import Point, Arrow
 from typing import List, Dict, Tuple
+from math import floor,ceil
 
 
 class DAGLayerHelper:
@@ -241,9 +242,10 @@ class DAGGraph:
         if len(target_nodes_within_layer) == 0:
             return
 
+        # 初始化节点排序
         if layer_index == 0:
             for idx in range(0, len(target_nodes_within_layer)):
-                target_nodes_within_layer[idx].sort_number = idx
+                target_nodes_within_layer[idx].sort_number = idx + 1
                 pass
             pass
 
@@ -262,9 +264,9 @@ class DAGGraph:
             # 整理节点排序
             target_nodes_within_layer.sort(key=compare_item)
             for idx in range(0, len(target_nodes_within_layer)):
-                target_nodes_within_layer[idx].sort_number = idx
+                target_item = target_nodes_within_layer[idx]
+                target_item.sort_number = idx + 1
                 pass
-
             pass
 
         self.__graph_layer_nodes_sort(layer_index + 1, nodes)
diff --git a/graph/directed_acyclic_graph/__pycache__/DAGLayout.cpython-312.pyc b/graph/directed_acyclic_graph/__pycache__/DAGLayout.cpython-312.pyc
index dbea7a6..6566644 100644
Binary files a/graph/directed_acyclic_graph/__pycache__/DAGLayout.cpython-312.pyc and b/graph/directed_acyclic_graph/__pycache__/DAGLayout.cpython-312.pyc differ