修改Add方法

flow.go

@@ -80,14 +80,20 @@ type Flow struct {
 }
 
 // Add 添加
-func (flow *Flow) Add(node *FlowNode) {
+func (flow *Flow) Add(name string, task func(cxt *FlowContext) int) {
+
+	node := &FlowNode{Name: name}
 
 	if flow.Head == nil {
 		flow.Head = node
 		flow.Tail = node
+
+		node.Path = node.Name
 		return
 	}
 
+	node.Path = flow.Tail.Path + ">" + flow.Tail.Name
+
 	flow.Tail.next = node
 	flow.Tail = node