diff --git a/public/react/public/js/js_min_all.js b/public/react/public/js/js_min_all.js
index 79134fc55..0d7a8988e 100755
--- a/public/react/public/js/js_min_all.js
+++ b/public/react/public/js/js_min_all.js
@@ -211,20 +211,35 @@ $(function(){
 
     var FF = !(window.mozInnerScreenX == null);
     var websshLineHeight = FF ? 19 : 18
-
+    function throttle(method, delay, duration){
+        var timer = null, begin = new Date();
+        return function(){
+            var context = this, args = arguments, current = new Date();
+            clearTimeout(timer);
+            if(current-begin >= duration){
+                method.apply(context, args);
+                begin = current;
+            } else {
+                timer = setTimeout(function(){
+                    method.apply(context, args);
+                }, delay);
+            }
+        }
+    }
     doc.live('mousemove touchmove',function(e){
 
         $(".-brother").show();// 代码行的遮罩显示
         if(dragging) {
             clickX = e.pageX || e.originalEvent.touches[0].pageX;;
             if(clickX > leftOffset+0&&clickX<leftOffset+1600) {
+                console.log('resize')
                 //console.log(1);
                 lab.css('left', clickX - 7 - leftOffset + 'px');
                 $("#game_left_contents").width( clickX-leftOffset + 'px');
                 nextW2 = clickX-leftOffset;
                 $("#game_right_contents").width( wrapWidth - nextW2  + 'px');
                 //console.log(lab.next().width());
-                refresh_editor_monaco()
+                throttle(refresh_editor_monaco, 100, 200)()
             } else {
                 lab.css('left', '0px');
             }
@@ -246,7 +261,8 @@ $(function(){
                 var w = $("#games_repository_contents").width();
                 $(".game_webssh").css("min-height", m);
                 $(".game_webssh").css("max-height", m);
-                refresh_editor_monaco(m)
+                throttle(refresh_editor_monaco, 100, 200)(m)
+                // refresh_editor_monaco(m)
                 // 火狐下行高为19
                 // CodeRepositoryView.js有同样的计算逻辑，用来初始化ssh
                 var rows = Math.round(m / websshLineHeight);
@@ -1187,6 +1203,8 @@ $(function(){ 		// 这里重新加一次事件监听，不在原有事件的基
 			dragging = true;
 			dragDom = lab;
 			$('#htmlIframe').css('pointer-events', 'none')
+            $('#can-drag').show()
+            lab.hide()
 	        return false;
 	    }
 	);
@@ -1206,8 +1224,11 @@ $(function(){ 		// 这里重新加一次事件监听，不在原有事件的基
 	})
 
 	doc.live("mouseup", function(e) {
+        lab.show()
 		// 在大窗口将下边测试集滚动条拖上去后，将窗口缩小，再拖下来就有这种情况  https://www.trustie.net/issues/16326
 		if (dragging === true) {	
+            $('#can-drag').hide()
+
 			window.editor_CodeMirror && window.editor_CodeMirror.refresh()
             
 			// 使得iframe可以继续捕获事件
diff --git a/public/react/src/modules/page/MainContent.js b/public/react/src/modules/page/MainContent.js
index 3fcaa55fd..c3d6b1384 100644
--- a/public/react/src/modules/page/MainContent.js
+++ b/public/react/src/modules/page/MainContent.js
@@ -58,6 +58,14 @@ class MainContent extends Component {
 						font-family: 微软雅黑,宋体 !important;
 						overflow: hidden !important;
 					}
+					.can-drag {
+						width: 100%;
+						height: 100%;
+						z-index: 100;
+						position: fixed;
+						cursor: col-resize;
+						top: 0px;
+					}
 				`}</style>
 		      	<div className="-layout -stretch -fit labelN" id="game_show_content">
 		      		<div className="split-panel--first -layout -vertical -flex -relative -flex-basic40"
@@ -67,7 +75,7 @@ class MainContent extends Component {
 		      			{/* 左侧任务说明等功能的区域 */}
 		      			<LeftViewContainer {...newProps}></LeftViewContainer>
 		      		</div>
-
+					<div id="can-drag" className="can-drag" style={{display: 'none'}}></div>
 		      		<div className="b-label -layout" style={{left: '687px'}}>
 		      			<div className="resize-helper ">
 		      				<Button variant="fab" aria-label="Swap" mini onClick={this.onResizeButtonClick}>