diff --git "a/\346\234\252\345\221\275\345\220\215\347\273\230\345\233\276.drawio" "b/\346\234\252\345\221\275\345\220\215\347\273\230\345\233\276.drawio"
new file mode 100644
index 0000000..61498fd
--- /dev/null
+++ "b/\346\234\252\345\221\275\345\220\215\347\273\230\345\233\276.drawio"
@@ -0,0 +1,51 @@
+<mxfile host="app.diagrams.net" agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36" version="24.8.3">
+  <diagram id="C5RBs43oDa-KdzZeNtuy" name="Page-1">
+    <mxGraphModel dx="1223" dy="898" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="827" pageHeight="1169" math="0" shadow="0">
+      <root>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-0" />
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-1" parent="WIyWlLk6GJQsqaUBKTNV-0" />
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-2" value="" style="rounded=0;html=1;jettySize=auto;orthogonalLoop=1;fontSize=11;endArrow=block;endFill=0;endSize=8;strokeWidth=1;shadow=0;labelBackgroundColor=none;edgeStyle=orthogonalEdgeStyle;" parent="WIyWlLk6GJQsqaUBKTNV-1" source="WIyWlLk6GJQsqaUBKTNV-3" target="WIyWlLk6GJQsqaUBKTNV-6" edge="1">
+          <mxGeometry relative="1" as="geometry" />
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-3" value="Lamp doesn&#39;t work" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;" parent="WIyWlLk6GJQsqaUBKTNV-1" vertex="1">
+          <mxGeometry x="160" y="80" width="120" height="40" as="geometry" />
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-4" value="Yes" style="rounded=0;html=1;jettySize=auto;orthogonalLoop=1;fontSize=11;endArrow=block;endFill=0;endSize=8;strokeWidth=1;shadow=0;labelBackgroundColor=none;edgeStyle=orthogonalEdgeStyle;" parent="WIyWlLk6GJQsqaUBKTNV-1" source="WIyWlLk6GJQsqaUBKTNV-6" target="WIyWlLk6GJQsqaUBKTNV-10" edge="1">
+          <mxGeometry y="20" relative="1" as="geometry">
+            <mxPoint as="offset" />
+          </mxGeometry>
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-5" value="No" style="edgeStyle=orthogonalEdgeStyle;rounded=0;html=1;jettySize=auto;orthogonalLoop=1;fontSize=11;endArrow=block;endFill=0;endSize=8;strokeWidth=1;shadow=0;labelBackgroundColor=none;" parent="WIyWlLk6GJQsqaUBKTNV-1" source="WIyWlLk6GJQsqaUBKTNV-6" target="WIyWlLk6GJQsqaUBKTNV-7" edge="1">
+          <mxGeometry y="10" relative="1" as="geometry">
+            <mxPoint as="offset" />
+          </mxGeometry>
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-6" value="Lamp&lt;br&gt;plugged in?" style="rhombus;whiteSpace=wrap;html=1;shadow=0;fontFamily=Helvetica;fontSize=12;align=center;strokeWidth=1;spacing=6;spacingTop=-4;" parent="WIyWlLk6GJQsqaUBKTNV-1" vertex="1">
+          <mxGeometry x="170" y="170" width="100" height="80" as="geometry" />
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-7" value="Plug in lamp" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;" parent="WIyWlLk6GJQsqaUBKTNV-1" vertex="1">
+          <mxGeometry x="320" y="190" width="120" height="40" as="geometry" />
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-8" value="No" style="rounded=0;html=1;jettySize=auto;orthogonalLoop=1;fontSize=11;endArrow=block;endFill=0;endSize=8;strokeWidth=1;shadow=0;labelBackgroundColor=none;edgeStyle=orthogonalEdgeStyle;" parent="WIyWlLk6GJQsqaUBKTNV-1" source="WIyWlLk6GJQsqaUBKTNV-10" target="WIyWlLk6GJQsqaUBKTNV-11" edge="1">
+          <mxGeometry x="0.3333" y="20" relative="1" as="geometry">
+            <mxPoint as="offset" />
+          </mxGeometry>
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-9" value="Yes" style="edgeStyle=orthogonalEdgeStyle;rounded=0;html=1;jettySize=auto;orthogonalLoop=1;fontSize=11;endArrow=block;endFill=0;endSize=8;strokeWidth=1;shadow=0;labelBackgroundColor=none;" parent="WIyWlLk6GJQsqaUBKTNV-1" source="WIyWlLk6GJQsqaUBKTNV-10" target="WIyWlLk6GJQsqaUBKTNV-12" edge="1">
+          <mxGeometry y="10" relative="1" as="geometry">
+            <mxPoint as="offset" />
+          </mxGeometry>
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-10" value="Bulb&lt;br&gt;burned out?" style="rhombus;whiteSpace=wrap;html=1;shadow=0;fontFamily=Helvetica;fontSize=12;align=center;strokeWidth=1;spacing=6;spacingTop=-4;" parent="WIyWlLk6GJQsqaUBKTNV-1" vertex="1">
+          <mxGeometry x="170" y="290" width="100" height="80" as="geometry" />
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-11" value="Repair Lamp" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;" parent="WIyWlLk6GJQsqaUBKTNV-1" vertex="1">
+          <mxGeometry x="160" y="430" width="120" height="40" as="geometry" />
+        </mxCell>
+        <mxCell id="WIyWlLk6GJQsqaUBKTNV-12" value="Replace Bulb" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;" parent="WIyWlLk6GJQsqaUBKTNV-1" vertex="1">
+          <mxGeometry x="320" y="310" width="120" height="40" as="geometry" />
+        </mxCell>
+      </root>
+    </mxGraphModel>
+  </diagram>
+</mxfile>