From d1fdc3eacb7d2d871188f0267a50a299606a02d7 Mon Sep 17 00:00:00 2001
From: Shikong <919411476@qq.com>
Date: Wed, 6 Oct 2021 17:18:20 +0800
Subject: [PATCH] =?UTF-8?q?docs:=20=E6=89=8B=E5=8A=A8=E5=AE=9E=E7=8E=B0=20?=
 =?UTF-8?q?simple=20log=20=E6=97=A5=E5=BF=97=E5=BA=93=20=E5=86=99=E5=85=A5?=
 =?UTF-8?q?=E6=8C=87=E5=AE=9A=E6=97=A5=E5=BF=97=E6=96=87=E4=BB=B6?=
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Content-Transfer-Encoding: 8bit

---
 simplelog/simplelog.go      |  4 ++++
 simplelog/simplelog_test.go | 23 +++++++++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/simplelog/simplelog.go b/simplelog/simplelog.go
index c59730b..111fe9d 100644
--- a/simplelog/simplelog.go
+++ b/simplelog/simplelog.go
@@ -81,6 +81,10 @@ func (l *Logger) Warn(log string) {
 
 // Error 消息输出
 func (l *Logger) Error(log string) {
+	if l.flag&FlagError != FlagError {
+		return
+	}
+
 	pc, file, line, ok := runtime.Caller(1)
 	l.PrintLog(ERROR, log)
 	if ok {
diff --git a/simplelog/simplelog_test.go b/simplelog/simplelog_test.go
index 1c88501..d253342 100644
--- a/simplelog/simplelog_test.go
+++ b/simplelog/simplelog_test.go
@@ -3,6 +3,7 @@ package simplelog
 import (
 	"fmt"
 	"os"
+	"path/filepath"
 	"testing"
 	"time"
 )
@@ -34,3 +35,25 @@ func TestLog(t *testing.T) {
 		time.Sleep(100 * time.Millisecond)
 	}
 }
+
+func TestLogToFile(t *testing.T) {
+	logFilePath, _ := filepath.Abs(filepath.Join(os.TempDir(), "./log.log"))
+
+	f, err := os.OpenFile(logFilePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		_ = f.Close()
+	}()
+
+	fmt.Printf("写入日志文件 %s\n", logFilePath)
+	log := NewLog(
+		WithWriter(f),
+		WithLogFlag(FlagInfo|FlagDebug|FlagWarn),
+	)
+
+	log.Debug("Debug 日志 测试")
+	log.Error("Error 日志 测试")
+	log.Info("Info 日志 测试")
+}