diff --git a/ttlError.go b/ttlError.go
new file mode 100755
index 0000000..1806f8c
--- /dev/null
+++ b/ttlError.go
@@ -0,0 +1,25 @@
+/*
+ * package error event
+ * Copyright (c) 2017 R&D.
+ * By guzeng
+ * 2018/01/05
+ */
+
+package ttlerr
+
+/**
+ * 定义error
+ */
+
+type TTLError struct {
+	Code string
+	Msg  string
+}
+
+func (e TTLError) Error() string {
+	return e.Code + " | " + e.Msg
+}
+
+func NewErr(code string, msg string) *TTLError {
+	return &TTLError{Code: code, Msg: msg}
+}