diff --git a/kcp-base/src/main/java/kcp/RecieveTask.java b/kcp-base/src/main/java/kcp/RecieveTask.java
index 66379e8..9c7fbd5 100644
--- a/kcp-base/src/main/java/kcp/RecieveTask.java
+++ b/kcp-base/src/main/java/kcp/RecieveTask.java
@@ -79,7 +79,7 @@ public void execute() {
                 }
             }
             //判断写事件
-            if (kcp.canSend(false)&&!kcp.getSendList().isEmpty()) {
+            if (!kcp.getSendList().isEmpty()&&kcp.canSend(false)) {
                 kcp.notifyWriteEvent();
             }
         } catch (Throwable e) {
diff --git a/kcp-base/src/main/java/kcp/ScheduleTask.java b/kcp-base/src/main/java/kcp/ScheduleTask.java
index add3d3a..9187d28 100644
--- a/kcp-base/src/main/java/kcp/ScheduleTask.java
+++ b/kcp-base/src/main/java/kcp/ScheduleTask.java
@@ -64,8 +64,7 @@ public void execute() {
 
 
             //检测写缓冲区 如果能写则触发写事件
-            if(ukcp.canSend(false)
-                    &&!ukcp.getSendList().isEmpty()
+            if(!ukcp.getSendList().isEmpty()&&ukcp.canSend(false)
             ){
                 ukcp.notifyWriteEvent();
             }
diff --git a/kcp-netty/src/main/java/test/KcpRttExampleClient.java b/kcp-netty/src/main/java/test/KcpRttExampleClient.java
index 194a7b4..9c05138 100644
--- a/kcp-netty/src/main/java/test/KcpRttExampleClient.java
+++ b/kcp-netty/src/main/java/test/KcpRttExampleClient.java
@@ -133,11 +133,18 @@ public void handleClose(Ukcp kcp) {
         }
 
         int sum = 0;
+        int max = 0;
         for (int rtt : rtts) {
+            if(rtt>max){
+                max = rtt;
+            }
             sum += rtt;
         }
-        System.out.println("average: "+ (sum / rtts.length));
+        System.out.println("average: "+ (sum / rtts.length)+" max:"+max);
         System.out.println(Snmp.snmp.toString());
+        System.out.println("lost percent: "+(Snmp.snmp.RetransSegs.doubleValue()/Snmp.snmp.OutPkts.doubleValue()));
+
+
     }