diff --git a/ClientCore/FileTrans.cpp b/ClientCore/FileTrans.cpp
index 799a57d..a844fd2 100644
--- a/ClientCore/FileTrans.cpp
+++ b/ClientCore/FileTrans.cpp
@@ -18,7 +18,13 @@ FileTrans::FileTrans(ClientCore* clientCore) : clientCore_(clientCore)
 void FileTrans::ReqSendFile(const TransTask& task)
 {
     // TODO: check if running...
-
+    if (sendTask_->file.isOpen()) {
+        qWarning() << QString(tr("file [%1] is running.")).arg(sendTask_->file.fileName());
+        while (sendTask_->file.isOpen()) {
+            QThread::msleep(1);
+        }
+        qWarning() << QString(tr("file [%1] is exit running.")).arg(sendTask_->file.fileName());
+    }
     // start
     InfoMsg info;
     info.toPath = task.remotePath;
@@ -85,20 +91,26 @@ void FileTrans::ReqDownFile(const TransTask& task)
 qint32 FileTrans::GetSendProgress()
 {
     if (sendTask_->state == TaskState::STATE_FINISH) {
-        downTask_->state == TaskState::STATE_NONE;
+        sendTask_->state = TaskState::STATE_NONE;
         return 100;
     }
     if (sendTask_->state != TaskState::STATE_RUNNING) {
         return -1;
     }
+
+    // wait file state ok.
     double per = (sendTask_->tranSize * 100.0) / sendTask_->totalSize;
-    return per;
+    qint32 rt = static_cast<qint32>(per);
+    if (rt >= 100) {
+        return 99;
+    }
+    return rt;
 }
 
 qint32 FileTrans::GetDownProgress()
 {
     if (downTask_->state == TaskState::STATE_FINISH) {
-        downTask_->state == TaskState::STATE_NONE;
+        downTask_->state = TaskState::STATE_NONE;
         return 100;
     }
     if (downTask_->state != TaskState::STATE_RUNNING) {
@@ -107,8 +119,13 @@ qint32 FileTrans::GetDownProgress()
     if (downTask_->totalSize == 0) {
         return 0;
     }
+    // wait file state ok.
     double per = (downTask_->tranSize * 100.0) / downTask_->totalSize;
-    return per;
+    qint32 rt = static_cast<qint32>(per);
+    if (rt >= 100) {
+        return 99;
+    }
+    return rt;
 }
 
 void FileTrans::RegisterSignal()
@@ -357,6 +374,7 @@ void SendThread::run()
     auto f = cliCore_->GetBuffer(info, FBT_CLI_TRANS_DONE, task_->task.remoteId);
     ClientCore::asyncInvoke(cliCore_, [this, f]() { return cliCore_->Send(f); });
     task_->file.close();
+    task_->state = TaskState::STATE_FINISH;
 }
 
 void SendThread::setTask(const QSharedPointer<DoTransTask>& task)
diff --git a/Util/Util.cpp b/Util/Util.cpp
index e5e137c..d485307 100644
--- a/Util/Util.cpp
+++ b/Util/Util.cpp
@@ -80,29 +80,18 @@ void Util::InitLogger(const QString& logPath, const QString& mark)
 #include <QDir>
 #include <QFileInfo>
 
+// do not check exit
 QString Util::Get2FilePath(const QString& file, const QString& directory)
 {
     if (file.isEmpty() || directory.isEmpty()) {
         return QString();
     }
 
-    QFileInfo fileInfo(file);
-    QDir dir(directory);
+    QString fileName = QFileInfo(file).fileName();
+    QString cleanDir = QDir::cleanPath(directory);
+    QString fullPath = QDir(cleanDir).filePath(fileName);
 
-    if (!fileInfo.isFile()) {
-        qWarning() << "Path A is not a file:" << file;
-        return QString();
-    }
-    if (!dir.exists()) {
-        qWarning() << "Path B is not a valid directory:" << directory;
-        return QString();
-    }
-
-    QString fileName = fileInfo.fileName();
-    QString cleanPathB = QDir::cleanPath(directory);
-    QString newPath = cleanPathB + QDir::separator() + fileName;
-    newPath = QDir::cleanPath(newPath);
-    return newPath;
+    return QDir::cleanPath(fullPath);
 }
 
 void Util::ConsoleMsgHander(QtMsgType type, const QMessageLogContext& context, const QString& msg)