rckliaoming: ======================= 先打印错误 TypeError: Cannot read property 'nodes' of null at zi.ready (treeSelect.js:57) at i.safeCallback (WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2) at i.call (WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2) at l.y.triggerLifeTime (WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2) at WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2 at Object.i.safeCallback (WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2) at Zt.triggerSetDataCallbacks (WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2) at WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2 at h (WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2) at WASubContext.js?t=wechat&s=1693360496605&v=2.19.6:2(env: Windows,mp,1.05.2204250; lib: 2.19.6) ===================== 然后打印查询到的数据 {nodes: Array(5), id:100, text: "顶级部门"}

rckliaoming: 动态赋值的话，写在onload里吗？ 我怎么报错呀 TypeError: Cannot read property 'nodes' of null

Dreams゜: 我的不是报错问题，是数据更新后画布不刷新， 用了楼主的方法后有效的

怎么吃不饱捏: 我跟作者报了一样的错误,我检查后发现是页面在mounted里面调用了一遍初始化gojs的方法,在activited里面又调用了一遍,我删掉后面的调用就不报错了

ahyo: 模拟数据如果是动态的话 怎么改那部分代码啊 也就是连接了数据库和数据库的数据同步更新 这样的写法{x:"",y;""}只能赋值常量 变量不行......救救