添加了节点服务器，各个服务器之间支持多对多

common/constant/fetter_state.go

@@ -0,0 +1,19 @@
+package constant
+
+var FetterStateConst *FetterState
+
+type FetterState struct {
+	NONE     uint16
+	NOT_OPEN uint16
+	OPEN     uint16
+	FINISH   uint16
+}
+
+func InitFetterStateConst() {
+	FetterStateConst = new(FetterState)
+
+	FetterStateConst.NONE = 0
+	FetterStateConst.NOT_OPEN = 1
+	FetterStateConst.OPEN = 1
+	FetterStateConst.FINISH = 3
+}