diff --git a/easylock/lock.go b/easylock/lock.go
index 25c5978..d096300 100644
--- a/easylock/lock.go
+++ b/easylock/lock.go
@@ -44,14 +44,13 @@ func (l *lock) Unlock(optionFuncList ...OptionFunc) error {
 
 func (l *lock) RLock(optionFuncList ...OptionFunc) error {
 	defer l.AddRLockCnt(l.lockCnt)
-
 	l.sc.RLock()
 	return nil
 }
 
 func (l *lock) RUnlock(optionFuncList ...OptionFunc) error {
 	defer l.DecreaseRLockCnt(l.lockCnt)
-	l.sc.Unlock()
+	l.sc.RUnlock()
 	return nil
 }
 
diff --git a/util/string.go b/util/string.go
index ae4cde5..c4b014a 100644
--- a/util/string.go
+++ b/util/string.go
@@ -43,6 +43,6 @@ func GenRandomString(source string, length uint) string {
 // Date : 6:01 下午 2021/3/9
 func Md5(str string) string {
 	h := md5.New()
-	h.Write([]byte(str))
+	_, _ = h.Write([]byte(str))
 	return hex.EncodeToString(h.Sum(nil))
 }