diff --git a/main.go b/main.go
index 2ba5d79..83c2d1a 100644
--- a/main.go
+++ b/main.go
@@ -160,6 +160,8 @@ func main() {
 	// IDE
 	http.HandleFunc("/login", loginHandler)
 	http.HandleFunc("/", indexHandler)
+
+	// 会话
 	http.HandleFunc("/session/ws", session.WSHandler)
 	http.HandleFunc("/session/save", session.SaveContent)
 
diff --git a/output/outputs.go b/output/outputs.go
index cda1fe5..8e100b4 100644
--- a/output/outputs.go
+++ b/output/outputs.go
@@ -104,7 +104,7 @@ func RunHandler(w http.ResponseWriter, r *http.Request) {
 			count, err := reader.Read(buf)
 
 			if nil != err || 0 == count {
-				// 从用户进程集中移除这个执行完毕的进程
+				// 从用户进程集中移除这个执行完毕（或是被主动停止）的进程
 				processes.remove(wSession, cmd.Process)
 
 				glog.V(3).Infof("Session [%s] 's running [id=%d, file=%s] has done", sid, runningId, filePath)
@@ -534,7 +534,7 @@ func StopHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	sid := args["sid"].(string)
-	pid := args["pid"].(int)
+	pid := int(args["pid"].(float64))
 
 	wSession := session.WideSessions.Get(sid)
 	if nil == wSession {