diff --git a/src/controllers/handler.js b/src/controllers/handler.js
index c0b93b1..b696df1 100644
--- a/src/controllers/handler.js
+++ b/src/controllers/handler.js
@@ -1115,7 +1115,7 @@ export default function luckysheetHandler() {
     });
 
     //表格mousemove
-    $(document).mousemove(function (event) {
+    $(document).on("mousemove.luckysheetEvent",function (event) {
         luckysheetPostil.overshow(event); //有批注显示
 
         window.cancelAnimationFrame(Store.jfautoscrollTimeout);
@@ -2181,7 +2181,7 @@ export default function luckysheetHandler() {
         }
     });
     //表格mouseup
-    $(document).mouseup(function (event) {
+    $(document).on("mouseup.luckysheetEvent",function (event) {
         //数据窗格主体
         if (Store.luckysheet_select_status) {
             clearTimeout(Store.countfuncTimeout);
@@ -3505,7 +3505,7 @@ export default function luckysheetHandler() {
     });
 
     //截图下载
-    $(document).on("click", "a.download", function () {
+    $(document).on("click.luckysheetEvent", "a.download", function () {
         let dataURI = $("#luckysheet-confirm-screenshot-save img").attr("src");
         const locale_screenshot = _locale.screenshot;
         let binStr = atob(dataURI.split(",")[1]),
@@ -3673,9 +3673,9 @@ export default function luckysheetHandler() {
         }
     }
 
-    $(document).on("visibilitychange webkitvisibilitychange msvisibilitychange", copychange).mouseleave(function () {
+    $(document).on("visibilitychange.luckysheetEvent webkitvisibilitychange.luckysheetEvent msvisibilitychange.luckysheetEvent", copychange).on("mouseleave.luckysheetEvent", function () {
         Store.iscopyself = false;
-    }).mousedown(function (event) {
+    }).on("mousedown.luckysheetEvent", function (event) {
         //有批注在编辑时
         luckysheetPostil.removeActivePs();
 
@@ -3722,7 +3722,7 @@ export default function luckysheetHandler() {
 
 
     //模态框拖动
-    $(document).on("mousedown", "div.luckysheet-modal-dialog", function (e) {
+    $(document).on("mousedown.luckysheetEvent", "div.luckysheet-modal-dialog", function (e) {
         if (!$(e.target).is(".luckysheet-modal-dialog")) {
             return;
         }
@@ -3735,7 +3735,7 @@ export default function luckysheetHandler() {
     });
 
     //模态框关闭
-    $(document).on("click", ".luckysheet-modal-dialog-title-close, .luckysheet-model-close-btn", function (e) {
+    $(document).on("click.luckysheetEvent", ".luckysheet-modal-dialog-title-close, .luckysheet-model-close-btn", function (e) {
         //选择文本颜色和单元格颜色弹出框取消
         if ($("#textcolorselect").is(":visible") || $("#cellcolorselect").is(":visible")) {
             $("#luckysheet-conditionformat-dialog").show();
@@ -3931,7 +3931,7 @@ export default function luckysheetHandler() {
     let dpi_y = document.getElementById('testdpidiv').offsetHeight * Store.devicePixelRatio;
 
     //粘贴事件处理
-    $(document).on("paste", function (e) {
+    $(document).on("paste.luckysheetEvent", function (e) {
         if (isEditMode()) {//此模式下禁用粘贴
             return;
         }
@@ -4081,7 +4081,7 @@ export default function luckysheetHandler() {
 
                             let bg = $td.css("background-color");
                             if (bg == "rgba(0, 0, 0, 0)") {
-                                bg = "rgba(255,255,255)";
+                                bg = null;
                             }
 
                             cell.bg = bg;
diff --git a/src/controllers/server.js b/src/controllers/server.js
index d0aa867..086e246 100644
--- a/src/controllers/server.js
+++ b/src/controllers/server.js
@@ -53,7 +53,12 @@ const server = {
 	                let v_row = [];
 
 	                for(let c = c1; c <= c2; c++){
-	                    v_row.push(data[r][c]);
+						if(data[r]==null){
+							v_row.push(null);
+						}
+						else{
+							v_row.push(data[r][c]);
+						}
 	                }
 
 	                v.push(v_row);
diff --git a/src/controllers/updateCell.js b/src/controllers/updateCell.js
index e169f58..1d18577 100644
--- a/src/controllers/updateCell.js
+++ b/src/controllers/updateCell.js
@@ -205,7 +205,9 @@ export function luckysheetupdateCell(row_index1, col_index1, d, cover, isnotfocu
 
 
 export function setCenterInputPosition(row_index, col_index, d){
-
+    if(row_index==null ||col_index==null){
+        return;
+    }
     let cell = d[row_index][col_index];
     if(cell==null){
         return;
diff --git a/src/core.js b/src/core.js
index 393da8a..a7730c1 100644
--- a/src/core.js
+++ b/src/core.js
@@ -95,6 +95,8 @@ luckysheet.create = function (setting) {
     luckysheetConfigsetting.defaultColWidth = extendsetting.defaultColWidth;
     luckysheetConfigsetting.defaultRowHeight = extendsetting.defaultRowHeight;
 
+    luckysheetConfigsetting.title = extendsetting.title;
+
     // Register plugins
     initPlugins(extendsetting.plugins , extendsetting.data);
 
diff --git a/src/global/createdom.js b/src/global/createdom.js
index 499dc13..52e5fd7 100644
--- a/src/global/createdom.js
+++ b/src/global/createdom.js
@@ -116,4 +116,6 @@ export default function luckysheetcreatedom(colwidth, rowheight, data, menu, tit
 
     //批注
     luckysheetPostil.buildAllPs(Store.flowdata);
+
+    $("#luckysheet_info_detail_input").val(luckysheetConfigsetting.title);
 }
\ No newline at end of file
diff --git a/src/global/draw.js b/src/global/draw.js
index bbc1ee9..b655281 100644
--- a/src/global/draw.js
+++ b/src/global/draw.js
@@ -1144,8 +1144,10 @@ let cellRender = function(r, c, start_r, start_c, end_r, end_c, value, luckyshee
         luckysheetTableContent.fillStyle = fillStyle;
     }
 
-    let borderfix = menuButton.borderfix(Store.flowdata, r, c);
 
+
+    let borderfix = menuButton.borderfix(Store.flowdata, r, c);
+    // console.log(value, fillStyle,borderfix);
     let cellsize = [
         (start_c + offsetLeft + borderfix[0]), 
         (start_r + offsetTop  + borderfix[1]), 
diff --git a/src/global/method.js b/src/global/method.js
index 812d993..ba7b27d 100644
--- a/src/global/method.js
+++ b/src/global/method.js
@@ -160,6 +160,10 @@ const method = {
         $("#luckysheet-modal-dialog-mask, #luckysheetTextSizeTest, #luckysheet-icon-morebtn-div").remove();
         $("#luckysheet-input-box").parent().remove();
         $("#luckysheet-formula-help-c").remove();
+        $(".chartSetting").remove();
+
+        //document event release
+        $(document).off(".luckysheetEvent");
         
         //参数重置
         Store.jfredo = [];
diff --git a/src/index.html b/src/index.html
index 9d07bf7..dfd82b7 100644
--- a/src/index.html
+++ b/src/index.html
@@ -33,6 +33,7 @@
 
 			luckysheet.create({
 				container: 'luckysheet',
+				title:"hehehahahehe ",
 				lang: 'en',
 				allowEdit:true,
 				forceCalculation:false,