复制如下内容保存到空白的.html文件中，用浏览器打开即可查看效果
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>hwl</title>
</head <body>
<div id="myDiagramDiv" style="border:solid 1px blue; width:400px; height:150px"></div>
<script src="https://unpkg.com/gojs/release/go-debug.js"></script>
<script>
var diagram = new go.Diagram("myDiagramDiv");
diagram.model = new go.GraphLinksModel(
[{
key: "wo"
}, {
key: "ai"
}, {
key: "ni"
}], // 数组中有3个节点数据
[{
from: "wo",
to: "ai"
}, {
from: "ai",
to: "ni"
}] // 数组中有3个连接数据
);
</script>
</body>
</html>