diff --git a/client/client.cpp b/client/client.cpp
index d1c86e6..af5c1a7 100644
--- a/client/client.cpp
+++ b/client/client.cpp
@@ -60,6 +60,8 @@ void CClient::run(const std::string& ip, const std::string& port)
 
         std::string cmd_input(line);
         if (cmd_input == "end") {
+            th_run_ = false;
+            std::this_thread::sleep_for(std::chrono::milliseconds(10));
             break;
         }
         auto vec = COfStr::split(cmd_input, " ");
@@ -440,7 +442,7 @@ void CClient::hearts()
     buf->type_ = TYPE_HEARTS;
     while (th_run_) {
         sleep_.sleep();
-        if (!send_frame(buf.get())) {
+        if (th_run_ && !send_frame(buf.get())) {
             logger_->error("{} send failed.", __FUNCTION__);
             th_run_ = false;
         }