update：连线样式修改

src/kit/LinkTemplateKit.ts

 import {GO} from './GOJSKit'
 import go from 'gojs'
+import {log} from "util";
 
 export var linkSelectionAdornmentTemplate =
 GO(go.Adornment, "Link",
   GO(go.Shape,
     // isPanelMain declares that this Shape shares the Link.geometry
     { isPanelMain: true, fill: null, stroke: "deepskyblue", strokeWidth: 1 },
-      new go.Binding("stroke").makeTwoWay()
   )  // use selection object's strokeWidth
  );
 
 
 export function MultiArrowLink() {
     go.Link.call(this);
+    // return GO(go.Link, {stroke:"red"})
 }
 go.Diagram.inherit(MultiArrowLink, go.Link);
 MultiArrowLink.prototype.makeGeometry = function() {
@@ -54,4 +55,33 @@ MultiArrowLink.prototype.makeGeometry = function() {
         fy = ay;
     }
     return geo;
-};
+};
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+
+export var FlowLink =
+    GO(go.Link,{
+            routing: go.Link.AvoidsNodes,
+            curve: go.Link.JumpGap,
+            corner: 5,
+            toShortLength: 4,
+            relinkableFrom: true,
+            relinkableTo: true,
+            reshapable: true,
+            // resegmentable: true,
+        },
+        new go.Binding("points", "points").makeTwoWay(),
+        GO(go.Shape, { isPanelMain:true, strokeWidth: 5, stroke: 'red'}),
+        GO(go.Shape, { isPanelMain:true, strokeWidth: 5, stroke: 'green',name:"FLOW", strokeDashArray: [10, 10]}),
+        GO(go.Shape, { toArrow: "Standard", stroke: null })
+    );
+
+export function animateFlow(myDiagram:go.Diagram){
+    // if (myAnimation) myAnimation.stop();
+    // Animate the flow in the pipes
+    let myAnimation = new go.Animation();
+    myAnimation.easing = go.Animation.EaseLinear;
+    myDiagram.links.each(link => link.findObject("FLOW")?myAnimation.add(link.findObject("FLOW"), "strokeDashOffset", 20, 0): null);
+    myDiagram.links.each(link => console.log(link))
+    // Run indefinitely
+    myAnimation.runCount = Infinity;
+    myAnimation.start();
+}
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