diff --git a/common/log.go b/common/log.go
index 78db646..5669298 100644
--- a/common/log.go
+++ b/common/log.go
@@ -12,49 +12,60 @@ import (
 	"time"
 )
 
-var Num int64
-var End int64
-var Results = make(chan *string)
-var LogSucTime int64
-var LogErrTime int64
-var WaitTime int64
-var Silent bool
-var Nocolor bool
-var JsonOutput bool
-var LogWG sync.WaitGroup
+// 记录扫描状态的全局变量
+var (
+	Num        int64                // 总任务数
+	End        int64                // 已完成数
+	Results    = make(chan *string) // 结果通道
+	LogSucTime int64                // 最近成功日志时间
+	LogErrTime int64                // 最近错误日志时间
+	WaitTime   int64                // 等待时间
+	Silent     bool                 // 静默模式
+	Nocolor    bool                 // 禁用颜色
+	JsonOutput bool                 // JSON输出
+	LogWG      sync.WaitGroup       // 日志同步等待组
+)
 
+// JsonText JSON输出的结构体
 type JsonText struct {
-	Type string `json:"type"`
-	Text string `json:"text"`
+	Type string `json:"type"` // 消息类型
+	Text string `json:"text"` // 消息内容
 }
 
+// init 初始化日志配置
 func init() {
 	log.SetOutput(io.Discard)
 	LogSucTime = time.Now().Unix()
 	go SaveLog()
 }
 
+// LogSuccess 记录成功信息
 func LogSuccess(result string) {
 	LogWG.Add(1)
 	LogSucTime = time.Now().Unix()
 	Results <- &result
 }
 
+// SaveLog 保存日志信息
 func SaveLog() {
 	for result := range Results {
+		// 打印日志
 		if !Silent {
 			if Nocolor {
 				fmt.Println(*result)
 			} else {
-				if strings.HasPrefix(*result, "[+] InfoScan") {
+				switch {
+				case strings.HasPrefix(*result, "[+] 信息扫描"):
 					color.Green(*result)
-				} else if strings.HasPrefix(*result, "[+]") {
+				case strings.HasPrefix(*result, "[+]"):
 					color.Red(*result)
-				} else {
+				default:
 					fmt.Println(*result)
 				}
 			}
 		}
+
+		// 保存到文件
 		if IsSave {
 			WriteFile(*result, Outputfile)
 		}
@@ -62,17 +73,20 @@ func SaveLog() {
 	}
 }
 
+// WriteFile 写入文件
 func WriteFile(result string, filename string) {
+	// 打开文件
 	fl, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
 	if err != nil {
-		fmt.Printf("Open %s error, %v\n", filename, err)
+		fmt.Printf("[!] 打开文件失败 %s: %v\n", filename, err)
 		return
 	}
+	defer fl.Close()
+
 	if JsonOutput {
-		var scantype string
-		var text string
+		// 解析JSON格式
+		var scantype, text string
 		if strings.HasPrefix(result, "[+]") || strings.HasPrefix(result, "[*]") || strings.HasPrefix(result, "[-]") {
-			//找到第二个空格的位置
 			index := strings.Index(result[4:], " ")
 			if index == -1 {
 				scantype = "msg"
@@ -85,61 +99,74 @@ func WriteFile(result string, filename string) {
 			scantype = "msg"
 			text = result
 		}
+
+		// 构造JSON对象
 		jsonText := JsonText{
 			Type: scantype,
 			Text: text,
 		}
+
+		// 序列化JSON
 		jsonData, err := json.Marshal(jsonText)
 		if err != nil {
-			fmt.Println(err)
+			fmt.Printf("[!] JSON序列化失败: %v\n", err)
 			jsonText = JsonText{
 				Type: "msg",
 				Text: result,
 			}
-			jsonData, err = json.Marshal(jsonText)
-			if err != nil {
-				fmt.Println(err)
-				jsonData = []byte(result)
-			}
+			jsonData, _ = json.Marshal(jsonText)
 		}
 		jsonData = append(jsonData, []byte(",\n")...)
 		_, err = fl.Write(jsonData)
 	} else {
 		_, err = fl.Write([]byte(result + "\n"))
 	}
-	fl.Close()
+
 	if err != nil {
-		fmt.Printf("Write %s error, %v\n", filename, err)
+		fmt.Printf("[!] 写入文件失败 %s: %v\n", filename, err)
 	}
 }
 
+// LogError 记录错误信息
 func LogError(errinfo interface{}) {
 	if WaitTime == 0 {
-		fmt.Printf("已完成 %v/%v %v \n", End, Num, errinfo)
+		fmt.Printf("[*] 已完成 %v/%v %v\n", End, Num, errinfo)
 	} else if (time.Now().Unix()-LogSucTime) > WaitTime && (time.Now().Unix()-LogErrTime) > WaitTime {
-		fmt.Printf("已完成 %v/%v %v \n", End, Num, errinfo)
+		fmt.Printf("[*] 已完成 %v/%v %v\n", End, Num, errinfo)
 		LogErrTime = time.Now().Unix()
 	}
 }
 
+// CheckErrs 检查是否为已知错误
 func CheckErrs(err error) bool {
 	if err == nil {
 		return false
 	}
+
+	// 已知错误列表
 	errs := []string{
-		"closed by the remote host", "too many connections",
-		"i/o timeout", "EOF", "A connection attempt failed",
-		"established connection failed", "connection attempt failed",
-		"Unable to read", "is not allowed to connect to this",
-		"no pg_hba.conf entry",
-		"No connection could be made",
-		"invalid packet size",
-		"bad connection",
+		"远程主机关闭连接",
+		"连接数过多",
+		"连接超时",
+		"EOF",
+		"连接尝试失败",
+		"建立连接失败",
+		"无法连接",
+		"无法读取数据",
+		"不允许连接",
+		"无pg_hba.conf配置项",
+		"无法建立连接",
+		"无效的数据包大小",
+		"连接异常",
 	}
+
+	// 检查错误是否匹配
+	errLower := strings.ToLower(err.Error())
 	for _, key := range errs {
-		if strings.Contains(strings.ToLower(err.Error()), strings.ToLower(key)) {
+		if strings.Contains(errLower, strings.ToLower(key)) {
 			return true
 		}
 	}
+
 	return false
 }