diff --git a/src/controllers/menuButton.js b/src/controllers/menuButton.js
index 820bb10..16fc31f 100644
--- a/src/controllers/menuButton.js
+++ b/src/controllers/menuButton.js
@@ -37,6 +37,7 @@ import { replaceHtml, getObjType, rgbTohex, mouseclickposition, luckysheetfontfo
 import {openProtectionModal,checkProtectionFormatCells,checkProtectionNotEnable} from './protection';
 import Store from '../store';
 import locale from '../locale/locale';
+import {checkTheStatusOfTheSelectedCells} from '../global/api';
 
 const menuButton = {
     "menu": '<div class="luckysheet-cols-menu luckysheet-rightgclick-menu luckysheet-menuButton ${subclass} luckysheet-mousedown-cancel" id="luckysheet-icon-${id}-menuButton">${item}</div>',
@@ -2171,19 +2172,11 @@ const menuButton = {
             e.stopPropagation();
         }).click(function(e){
             let d = editor.deepCopyFlowData(Store.flowdata);
-            let row_index = Store.luckysheet_select_save[0]["row_focus"], 
-                col_index = Store.luckysheet_select_save[0]["column_focus"];
-            let foucsStatus = _this.checkstatus(d, row_index, col_index, "bl");
-
-            if(foucsStatus == 1){
-                foucsStatus = 0;
-            }
-            else{
-                foucsStatus = 1;
-            }
+            
+            let flag = checkTheStatusOfTheSelectedCells("bl",1);
+            let foucsStatus = flag ? 0 : 1;
 
             _this.updateFormat(d, "bl", foucsStatus);
-            _this.menuButtonFocus(d, row_index, col_index);
         });
 
         //斜体
@@ -2192,19 +2185,11 @@ const menuButton = {
             e.stopPropagation();
         }).click(function(){
             let d = editor.deepCopyFlowData(Store.flowdata);
-            let row_index = Store.luckysheet_select_save[0]["row_focus"], 
-                col_index = Store.luckysheet_select_save[0]["column_focus"];
-            let foucsStatus = _this.checkstatus(d, row_index, col_index, "it");
 
-            if(foucsStatus == 1){
-                foucsStatus = 0;
-            }
-            else{
-                foucsStatus = 1;
-            }
+            let flag = checkTheStatusOfTheSelectedCells("it",1);
+            let foucsStatus = flag ? 0 : 1;
 
             _this.updateFormat(d, "it", foucsStatus);
-            _this.menuButtonFocus(d, row_index, col_index);
         });
 
         //删除线
@@ -2213,19 +2198,10 @@ const menuButton = {
             e.stopPropagation();
         }).click(function(){
             let d = editor.deepCopyFlowData(Store.flowdata);
-            let row_index = Store.luckysheet_select_save[0]["row_focus"], 
-                col_index = Store.luckysheet_select_save[0]["column_focus"];
-            let foucsStatus = _this.checkstatus(d, row_index, col_index, "cl");
-
-            if(foucsStatus == 1){
-                foucsStatus = 0;
-            }
-            else{
-                foucsStatus = 1;
-            }
+            let flag = checkTheStatusOfTheSelectedCells("cl",1);
+            let foucsStatus = flag ? 0 : 1;
 
             _this.updateFormat(d, "cl", foucsStatus);
-            _this.menuButtonFocus(d, row_index, col_index);
         });
 
         //下划线
@@ -2234,19 +2210,10 @@ const menuButton = {
             e.stopPropagation();
         }).click(function(){
             let d = editor.deepCopyFlowData(Store.flowdata);
-            let row_index = Store.luckysheet_select_save[0]["row_focus"], 
-                col_index = Store.luckysheet_select_save[0]["column_focus"];
-            let foucsStatus = _this.checkstatus(d, row_index, col_index, "un");
-
-            if(foucsStatus == 1){
-                foucsStatus = 0;
-            }
-            else{
-                foucsStatus = 1;
-            }
+            let flag = checkTheStatusOfTheSelectedCells("un",1);
+            let foucsStatus = flag ? 0 : 1;
 
             _this.updateFormat(d, "un", foucsStatus);
-            _this.menuButtonFocus(d, row_index, col_index);
         });
 
         //条件格式
diff --git a/src/global/api.js b/src/global/api.js
index 549dfdb..17c6628 100644
--- a/src/global/api.js
+++ b/src/global/api.js
@@ -6680,6 +6680,9 @@ export function checkTheStatusOfTheSelectedCells(type,status){
 
     let flag = cells.every(({r,c})=>{
         let cell = Store.flowdata[r][c];
+        if(cell == null){
+            return false;
+        }
         return cell[type] == status;
     })