diff --git a/color.png b/color.png
new file mode 100644
index 0000000..e6c0ebd
Binary files /dev/null and b/color.png differ
diff --git a/format_test.go b/format_test.go
index 606663f..9ae2b96 100644
--- a/format_test.go
+++ b/format_test.go
@@ -72,5 +72,7 @@ func TestExtactDateTime(t *testing.T) {
 		// 有两个 2006 ，会出错
 		format = `{"date": "2006-01-02", "time": "15:04:05.999999999", "Tag": "2006" "level": "info", "file": "log/main.go", "line":88, "log": "message"}`
 		dateFmt, timeFmt = ExtactDateTime(format)
+
+		_, _ = dateFmt, timeFmt
 	}()
 }
diff --git a/log.go b/log.go
index e608bde..5e75ba7 100644
--- a/log.go
+++ b/log.go
@@ -80,30 +80,3 @@ func Tpanicf(tag string, format string, m ...interface{}) { std.Tprintf(v, Panic
 func Tfatalf(tag string, format string, m ...interface{}) { std.Tprintf(v, FatalLevel, tag, format, m...)}
 func Tprintf(tag string, format string, m ...interface{}) { std.Tprintf(v, PrintLevel, tag, format, m...)}
 func Tstackf(tag string, format string, m ...interface{}) { std.Tprintf(v, StackLevel, tag, format, m...)}
-
-// ======== 兼容 qiniu/log   ===============
-func SetOutputLevel(l Level) { v = l }
-
-// ======== 兼容 wothing/log ===============
-
-// 打印日志时带上 tag
-func TraceT(tag string, m ...interface{}) { std.Tprintf(v, TraceLevel, tag, "", m...) }
-func DebugT(tag string, m ...interface{}) { std.Tprintf(v, DebugLevel, tag, "", m...) }
-func InfoT(tag string, m ...interface{})  { std.Tprintf(v, InfoLevel, tag, "", m...) }
-func WarnT(tag string, m ...interface{})  { std.Tprintf(v, WarnLevel, tag, "", m...) }
-func ErrorT(tag string, m ...interface{}) { std.Tprintf(v, ErrorLevel, tag, "", m...) }
-func PanicT(tag string, m ...interface{}) { std.Tprintf(v, PanicLevel, tag, "", m...) }
-func FatalT(tag string, m ...interface{}) { std.Tprintf(v, FatalLevel, tag, "", m...) }
-func PrintT(tag string, m ...interface{}) { std.Tprintf(v, PrintLevel, tag, "", m...) }
-func StackT(tag string, m ...interface{}) { std.Tprintf(v, StackLevel, tag, "", m...) }
-
-// 按一定格式打印日志，并在打印日志时带上 tag
-func TracefT(tag string, format string, m ...interface{}) { std.Tprintf(v, TraceLevel, tag, format, m...)}
-func DebugfT(tag string, format string, m ...interface{}) { std.Tprintf(v, DebugLevel, tag, format, m...)}
-func InfofT(tag string, format string, m ...interface{})  { std.Tprintf(v, InfoLevel, tag, format, m...) }
-func WarnfT(tag string, format string, m ...interface{})  { std.Tprintf(v, WarnLevel, tag, format, m...) }
-func ErrorfT(tag string, format string, m ...interface{}) { std.Tprintf(v, ErrorLevel, tag, format, m...)}
-func PanicfT(tag string, format string, m ...interface{}) { std.Tprintf(v, PanicLevel, tag, format, m...)}
-func FatalfT(tag string, format string, m ...interface{}) { std.Tprintf(v, FatalLevel, tag, format, m...)}
-func PrintfT(tag string, format string, m ...interface{}) {std.Tprintf(v, PrintLevel, tag, format, m...)}
-func StackfT(tag string, format string, m ...interface{}) {std.Tprintf(v, StackLevel, tag, format, m...)}
diff --git a/log_test.go b/log_test.go
index 5c32742..28c93b2 100644
--- a/log_test.go
+++ b/log_test.go
@@ -144,51 +144,3 @@ func TestFormatLogWithTag(t *testing.T) {
 	Tprintf(uuid, "%d %s", PrintLevel, PrintLevel)
 	Tstackf(uuid, "%d %s", StackLevel, StackLevel)
 }
-
-func TestWothingNormalLogWithTag(t *testing.T) {
-	format := "2006-01-02 15:04:05 tag info examples/main.go:88 message"
-	SetFormat(format)
-	SetLevel(AllLevel)
-
-	TraceT(uuid, AllLevel)
-	TraceT(uuid, TraceLevel)
-	DebugT(uuid, DebugLevel)
-	InfoT(uuid, InfoLevel)
-	WarnT(uuid, WarnLevel)
-	ErrorT(uuid, ErrorLevel)
-	func() {
-		defer func() {
-			if err := recover(); err == nil {
-				t.Fail()
-			}
-		}()
-		PanicT(uuid, PanicLevel)
-	}()
-	// FatalT(uuid, FatalLevel)
-	PrintT(uuid, PrintLevel)
-	StackT(uuid, StackLevel)
-}
-
-func TestWothingFormatLogWithTag(t *testing.T) {
-	format := "2006-01-02 15:04:05 tag info examples/main.go:88 message"
-	SetFormat(format)
-	SetLevel(AllLevel)
-
-	TracefT(uuid, "%d %s", AllLevel, AllLevel)
-	TracefT(uuid, "%d %s", TraceLevel, TraceLevel)
-	DebugfT(uuid, "%d %s", DebugLevel, DebugLevel)
-	InfofT(uuid, "%d %s", InfoLevel, InfoLevel)
-	WarnfT(uuid, "%d %s", WarnLevel, WarnLevel)
-	ErrorfT(uuid, "%d %s", ErrorLevel, ErrorLevel)
-	func() {
-		defer func() {
-			if err := recover(); err == nil {
-				t.Fail()
-			}
-		}()
-		PanicfT(uuid, "%d %s", PanicLevel, PanicLevel)
-	}()
-	// FatalfT(uuid,"%d %s", FatalLevel, FatalLevel)
-	PrintfT(uuid, "%d %s", PrintLevel, PrintLevel)
-	StackfT(uuid, "%d %s", StackLevel, StackLevel)
-}