diff --git a/log/example_test.go b/log/example_test.go
deleted file mode 100644
index 55f5c35..0000000
--- a/log/example_test.go
+++ /dev/null
@@ -1,29 +0,0 @@
-package log_test
-
-import (
-	"github.com/name5566/leaf/log"
-	l "log"
-)
-
-func Example() {
-	name := "Leaf"
-
-	log.Debug("My name is %v", name)
-	log.Release("My name is %v", name)
-	log.Error("My name is %v", name)
-	// log.Fatal("My name is %v", name)
-
-	logger, err := log.New("release", "", l.LstdFlags)
-	if err != nil {
-		return
-	}
-	defer logger.Close()
-
-	logger.Debug("will not print")
-	logger.Release("My name is %v", name)
-
-	log.Export(logger)
-
-	log.Debug("will not print")
-	log.Release("My name is %v", name)
-}