diff --git a/static/js/event/impl/ApplyStyleEventImpl.js b/static/js/event/impl/ApplyStyleEventImpl.js
index dc80a1d..2138585 100644
--- a/static/js/event/impl/ApplyStyleEventImpl.js
+++ b/static/js/event/impl/ApplyStyleEventImpl.js
@@ -20,6 +20,9 @@ define(function (require, exports, module) {
         for (let i = 0; i < curS.rangeCount; i++) {
             let curRange = curS.getRangeAt(i);
             let curCommonEle = curRange.commonAncestorContainer;
+            let curStartContainerEle = curRange.startContainer;
+            let curEndContainerEle = curRange.endContainer;
+            let taskMap = new Map;
             let start = curRange.startOffset;
             let end = curRange.endOffset;
             if (start > end) {
@@ -27,93 +30,97 @@ define(function (require, exports, module) {
                 start = end;
                 end = tmpS;
             }
-            if (start === end) {
-                continue
-            }
 
-            // //一个元素节点，例如 <p> 和 <div>。
-            // let curComIsSpan = curCommonEle.nodeType === 1 && curCommonEle.nodeName === "SPAN";
-            // let curComParentIsP = curCommonEle.parentNode.nodeType === 1 && curCommonEle.parentNode.nodeName === "P";
-            // let curComParentIsDiv = curCommonEle.parentNode.nodeType === 1 && curCommonEle.parentNode.nodeName === "DIV";
-            // let curComParentIsSpan = curCommonEle.parentNode.nodeType === 1 && (curCommonEle.parentNode.nodeName === 'SPAN"' || curCommonEle.parentNode.nodeName === 'SPAN');
-            // console.log(" 当前选区信息 : ", curRange,
-            //     "\ncurCommonEle: ", curCommonEle,
-            //     "\ncurCommonEleParent: ", curCommonEle.parentNode, curCommonEle.parentNode.nodeType, curCommonEle.parentNode.nodeName,
-            //     "\ncurCommonEleParentParent: ", curCommonEle.parentNode.parentNode, curCommonEle.parentNode.parentNode.nodeType, curCommonEle.parentNode.parentNode.nodeName,
-            //
-            //     "\ncurComParentIsSpan: ", curComParentIsSpan,
-            //     "\ncurComParentIsP : ", curComParentIsP,
-            //     "\ncurComParentIsDiv", curComParentIsDiv,
-            //     "\ncurComIsSpan", curComIsSpan,
-            //
-            //     "\nstyleK: ", styleK,
-            //     "\nstyleV: ", styleV,
-            //     "\ntart: ", start,
-            //     "\nend: ", end);
-
-            let curSpanContent = curCommonEle;
-            if (curSpanContent.nodeName !== "SPAN" || curSpanContent.getAttribute("data-flag") !== "span_content") {
-                curSpanContent = curSpanContent.parentElement.closest("span[data-flag='span_content']");
-            }
-            console.log("curSpanContent : ", curSpanContent, curCommonEle);
-            if (curSpanContent.childNodes.length <= 0) {
-                continue
-            }
-            let firstItem = curSpanContent.childNodes[0];
-            console.log("curSpanContent : ", curSpanContent, curSpanContent.childNodes, firstItem.nodeName, firstItem.nodeType);
-            let isEmptyStyle = curSpanContent.childNodes.length === 1 && firstItem.nodeName === "#text" && firstItem.nodeType === 3;
-            if (isEmptyStyle) {
-                let copySpan = curSpanContent.cloneNode();
-                copySpan.innerHTML = "";
-                for (let j = 0; j < curSpanContent.innerText.length; j++) {
-                    // console.log(curStartP.innerText.charAt(j))
-                    if (j >= start && j < end) {
-                        let tmpSpan = document.createElement("span");
-                        tmpSpan.innerText = curSpanContent.innerText.charAt(j);
-                        applySpanStyleKV(tmpSpan, styleK, styleV);
-                        copySpan.append(tmpSpan);
-                    } else {
-                        let tmpSpan = document.createElement("span");
-                        tmpSpan.innerText = curSpanContent.innerText.charAt(j);
-                        copySpan.append(tmpSpan);
+            let tmpStart = getSpanContent(curStartContainerEle);
+            let tmpEnd = getSpanContent(curEndContainerEle);
+            if (tmpStart.getAttribute("id") === tmpEnd.getAttribute("id")) {
+                taskMap.set(tmpStart.getAttribute("id"), tmpStart)
+            } else {
+                let tmp = tmpStart;
+                if (parseInt(tmpStart.getAttribute("data-order")) > parseInt(tmpEnd.getAttribute("data-order"))) {
+                    tmpStart = tmpEnd;
+                    tmpEnd = tmp;
+                }
+                taskMap.set(tmpStart.getAttribute("id"), tmpStart)
+                while (true) {
+                    let nextTask = tmpStart.nextSibling;
+                    taskMap.set(nextTask.getAttribute("id"), nextTask);
+                    if (nextTask.getAttribute("id") === tmpEnd.getAttribute("id")) {
+                        break
                     }
                 }
+            }
+            if (taskMap.size === 1 && start === end) {
+                continue
+            }
 
-                curSpanContent.innerHTML = copySpan.innerHTML;
+            for (let [key, curSpanContent] of taskMap) {
+                console.log("curSpanContent : ", curSpanContent, "\n", curCommonEle, "\nsize:", taskMap.size);
+                console.dir(taskMap)
+                console.dir(curS)
+                console.dir(curRange)
 
-                //光标保持
-                let s = window.getSelection();
-                if (s.rangeCount > 0) s.removeAllRanges();
-                let newR = document.createRange();
-                //重新获取元素
-                let tmpP = curSpanContent;
-                let childrenSize = tmpP.childNodes.length;
-                console.log("debug007: ", tmpP, start, end, childrenSize)
-                newR.setStart(tmpP, start);
-                newR.setEnd(tmpP, end);
-                //区域 添加 到选区
-                s.addRange(newR);
-            } else {
-                let total = 0, effectNum = 0;
-                for (let j = 0; j < curSpanContent.childNodes.length; j++) {
-                    let tmpSpan = curSpanContent.childNodes[j];
-                    if (curS.containsNode(tmpSpan, true)) {
-                        total++;
-                        if (spanContainsStyleKV(tmpSpan, styleK, styleV)) {
-                            console.dir(tmpSpan);
-                        } else {
-                            effectNum++;
+                if (curSpanContent.childNodes === undefined || curSpanContent.childNodes === null || curSpanContent.childNodes.length <= 0) {
+                    continue
+                }
+                let firstItem = curSpanContent.childNodes[0];
+                console.log("curSpanContent : ", curSpanContent, curSpanContent.childNodes, firstItem.nodeName, firstItem.nodeType);
+                let isEmptyStyle = curSpanContent.childNodes.length === 1 && firstItem.nodeName === "#text" && firstItem.nodeType === 3;
+                if (isEmptyStyle) {
+                    let copySpan = curSpanContent.cloneNode();
+                    copySpan.innerHTML = "";
+                    for (let j = 0; j < curSpanContent.innerText.length; j++) {
+                        // console.log(curStartP.innerText.charAt(j))
+                        if (j >= start && j < end) {
+                            let tmpSpan = document.createElement("span");
+                            tmpSpan.innerText = curSpanContent.innerText.charAt(j);
                             applySpanStyleKV(tmpSpan, styleK, styleV);
+                            copySpan.append(tmpSpan);
+                        } else {
+                            let tmpSpan = document.createElement("span");
+                            tmpSpan.innerText = curSpanContent.innerText.charAt(j);
+                            copySpan.append(tmpSpan);
                         }
                     }
-                }
 
-                //如果没有设置任何一个 则取消
-                if (effectNum === 0) {
+                    curSpanContent.innerHTML = copySpan.innerHTML;
+
+                    //光标保持. for 单行
+                    if (taskMap.size === 1) {
+                        let s = window.getSelection();
+                        if (s.rangeCount > 0) s.removeAllRanges();
+                        let newR = document.createRange();
+                        //重新获取元素
+                        let tmpP = curSpanContent;
+                        let childrenSize = tmpP.childNodes.length;
+                        console.log("debug007: ", tmpP, start, end, childrenSize)
+                        newR.setStart(tmpP, start);
+                        newR.setEnd(tmpP, end);
+                        //区域 添加 到选区
+                        s.addRange(newR);
+                    }
+                } else {
+                    let total = 0, effectNum = 0;
                     for (let j = 0; j < curSpanContent.childNodes.length; j++) {
                         let tmpSpan = curSpanContent.childNodes[j];
                         if (curS.containsNode(tmpSpan, true)) {
-                            removeSpanStyleKV(tmpSpan, styleK, styleV);
+                            total++;
+                            if (spanContainsStyleKV(tmpSpan, styleK, styleV)) {
+                                console.dir(tmpSpan);
+                            } else {
+                                effectNum++;
+                                applySpanStyleKV(tmpSpan, styleK, styleV);
+                            }
+                        }
+                    }
+
+                    //如果没有设置任何一个 则取消
+                    if (effectNum === 0) {
+                        for (let j = 0; j < curSpanContent.childNodes.length; j++) {
+                            let tmpSpan = curSpanContent.childNodes[j];
+                            if (curS.containsNode(tmpSpan, true)) {
+                                removeSpanStyleKV(tmpSpan, styleK, styleV);
+                            }
                         }
                     }
                 }
@@ -152,6 +159,15 @@ define(function (require, exports, module) {
         }
     }
 
+
+    function getSpanContent(item) {
+        let tmp = item;
+        if (item.nodeName !== "SPAN" || item.getAttribute("data-flag") !== "span_content") {
+            tmp = item.parentElement.closest("span[data-flag='span_content']");
+        }
+        return tmp
+    }
+
     //导出
     exports.handle = handle;
 });
\ No newline at end of file