添加Members查找方法

message.go

@@ -99,18 +99,18 @@ func (m *Message) Receiver() (*User, error) {
 		if sender, err := m.Sender(); err != nil {
 			return nil, err
 		} else {
-			users := sender.MemberList.SearchByUserName(1, m.ToUserName)
+			user, exist := sender.MemberList.GetByUserName(m.ToUserName)
-			if users == nil {
+			if !exist {
 				return nil, ErrNoSuchUserFoundError
 			}
-			return users.First(), nil
+			return user, nil
 		}
 	} else {
-		users := m.Bot.self.MemberList.SearchByUserName(1, m.ToUserName)
+		user, exist := m.Bot.self.MemberList.GetByRemarkName(m.ToUserName)
-		if users == nil {
+		if !exist {
 			return nil, ErrNoSuchUserFoundError
 		}
-		return users.First(), nil
+		return user, nil
 	}
 }
 

user.go

@@ -534,6 +534,27 @@ func (m Members) Search(limit int, condFuncList ...func(user *User) bool) (resul
 	return
 }
 
+// GetByUserName 根据username查找用户
+func (m Members) GetByUserName(username string) (*User, bool) {
+	users := m.SearchByUserName(1, username)
+	user := users.First()
+	return user, user != nil
+}
+
+// GetByRemarkName 根据remarkName查找用户
+func (m Members) GetByRemarkName(remarkName string) (*User, bool) {
+	users := m.SearchByRemarkName(1, remarkName)
+	user := users.First()
+	return user, user != nil
+}
+
+// GetByNickName 根据nickname查找用户
+func (m Members) GetByNickName(nickname string) (*User, bool) {
+	users := m.SearchByNickName(1, nickname)
+	user := users.First()
+	return user, user != nil
+}
+
 func (m Members) Friends() Friends {
 	friends := make(Friends, 0)
 	for _, mb := range m {