这样判空就会报错 

                loadNode(node, resolve)
                    console.log("node")
                    console.log(node)
                    if (node.data !== null) {
                        this.get(ctx + '/publicity/publicityType/typeTreeData?id=' + node.data.id).then((res) => {
                            resolve(res)
                        })
                    }
                },

        需要这样写，用typeof来做类型判断

                console.log("node")
                console.log(node)
                if (typeof node.data !== 'undefined') {
                    this.get(ctx + '/publicity/publicityType/typeTreeData?id='+node.data.id).then((res) => {
                        resolve(res)
                    })
                }else {
                    this.get(ctx + '/publicity/publicityType/typeTreeData?id='+this.typeId).then((res) => {
                        resolve(res)
                    })
                }