怎样修改删除指定内容？

Question

用js，替换html代码var reg = /<table[\s]+[^>]+>/gi;  // 正则表达式alert(htmlcontent.replace(reg,'<table width="1800" style="width: 800px;">'));

Answer 1

那可能要先将代码保存到一个容器中，比如一个一行一列的table，然后用js遍历里面的所有元素，如果有超过宽度的元素，就设置它的style，你可以用jquery，很方便这里刚找到一个修改样式的文章 可以参考一下
http://www.cnblogs.com/chutianshu1981/articles/2935124.html

Answer 2

谢谢！
我用的是百度的富文本编辑器，那里面有这个功能，但是我不太熟悉js，所以找不到具体是哪段代码实现的——没有用jquery。
粘贴时修改宽度样式的代码是不是很复杂？能用几行代码实现吗？

Answer 3

编辑器代码里，搜索 filterPasteWord函数
在里面的switch(name)里，加入width的逻辑判断还需要在最后那个return function里边去掉word的判断

Answer 4

太谢谢了，高人啊！
我不太熟悉js，能麻烦您帮我改一下代码好吗？
这是我现在用的旧版代码：
filterPasteWord函数的switch(name)：switch ( name ) {
                            case "mso-padding-alt":
                            case "mso-padding-top-alt":
                            case "mso-padding-right-alt":
                            case "mso-padding-bottom-alt":
                            case "mso-padding-left-alt":
                            case "mso-margin-alt":
                            case "mso-margin-top-alt":
                            case "mso-margin-right-alt":
                            case "mso-margin-bottom-alt":
                            case "mso-margin-left-alt":
                            //ie下会出现挤到一起的情况
//                            case "mso-table-layout-alt":
                            case "mso-height":
                            case "mso-width":
                            case "mso-vertical-align-alt":
                                //trace:1819 ff下会解析出padding在table上
                                if(!/<table/.test(tag))
                                    n[i] = name.replace( /^mso-|-alt$/g, "" ) + ":" + ensureUnits( value );
                                continue;
                            case "horiz-align":
                                n[i] = "text-align:" + value;
                                continue;                            case "vert-align":
                                n[i] = "vertical-align:" + value;
                                continue;                            case "font-color":
                            case "mso-foreground":
                                n[i] = "color:" + value;
                                continue;                            case "mso-background":
                            case "mso-highlight":
                                n[i] = "background:" + value;
                                continue;                            case "mso-default-height":
                                n[i] = "min-height:" + ensureUnits( value );
                                continue;                            case "mso-default-width":
                                n[i] = "min-width:" + ensureUnits( value );
                                continue;                            case "mso-padding-between-alt":
                                n[i] = "border-collapse:separate;border-spacing:" + ensureUnits( value );
                                continue;                            case "text-line-through":
                                if ( (value == "single") || (value == "double") ) {
                                    n[i] = "text-decoration:line-through";
                                }
                                continue;
                            //trace:1870
//                            //word里边的字体统一干掉
//                            case 'font-family':
//                                continue;
                            case "mso-zero-height":
                                if ( value == "yes" ) {
                                    n[i] = "display:none";
                                }
                                continue;
                            case 'margin':                                if ( !/[1-9]/.test( parts[1] ) ) {
                                    continue;
                                }
                        }return function ( html )：return function ( html ) {            //过了word,才能转p->li
            first = null;
            parentTag = '',liStyle = '',firstTag = '';
            if ( isWordDocument( html ) ) {
                html = filterPasteWord( html );
            }
            return html.replace( />[ \t\r\n]*</g, '><' );
        };

Answer 5

switch ( name ) {
                            case "mso-padding-alt":
                            case "mso-padding-top-alt":
                            case "mso-padding-right-alt":
                            case "mso-padding-bottom-alt":
                            case "mso-padding-left-alt":
                            case "mso-margin-alt":
                            case "mso-margin-top-alt":
                            case "mso-margin-right-alt":
                            case "mso-margin-bottom-alt":
                            case "mso-margin-left-alt":
                            //ie下会出现挤到一起的情况
//                            case "mso-table-layout-alt":
                            case "mso-height":
                            case "mso-width":
                            case "mso-vertical-align-alt":
                                //trace:1819 ff下会解析出padding在table上
                                if(!/<table/.test(tag))
                                    n[i] = name.replace( /^mso-|-alt$/g, "" ) + ":" + ensureUnits( value );
                                continue;
                            case "horiz-align":
                                n[i] = "text-align:" + value;
                                continue;
 
                            case "vert-align":
                                n[i] = "vertical-align:" + value;
                                continue;
 
                            case "font-color":
                            case "mso-foreground":
                                n[i] = "color:" + value;
                                continue;
 
                            case "mso-background":
                            case "mso-highlight":
                                n[i] = "background:" + value;
                                continue;
 
                            case "mso-default-height":
                                n[i] = "min-height:" + ensureUnits( value );
                                continue;
 
                            case "mso-default-width":
                                n[i] = "min-width:" + ensureUnits( value );
                                continue;
 
                            case "mso-padding-between-alt":
                                n[i] = "border-collapse:separate;border-spacing:" + ensureUnits( value );
                                continue;
 
                            case "text-line-through":
                                if ( (value == "single") || (value == "double") ) {
                                    n[i] = "text-decoration:line-through";
                                }
                                continue;
 
                         
                            //trace:1870
//                            //word里边的字体统一干掉
//                            case 'font-family':
//                                continue;
                            case "mso-zero-height":
                                if ( value == "yes" ) {
                                    n[i] = "display:none";
                                }
                                continue;
                            case 'width':
if(tag ==='<table'){
 n[i]="width:800px";
}
continue;
                            case 'margin':
 
                                if ( !/[1-9]/.test( parts[1] ) ) {
                                    continue;
                                }
                            
                        }return function ( html ) {
 
            //过了word,才能转p->li
            first = null;
            parentTag = '',liStyle = '',firstTag = '';
            //if ( isWordDocument( html ) ) {
                html = filterPasteWord( html );
            //}
            return html.replace( />[ \t\r\n]*</g, '><' );
        };不好意思，周末不看csdn

Answer 6

不要这么说，已经很谢谢了！
我这样改的：case 'width':
if(tag ==='<table'){
 n[i]="width:400px";
}
continue;//注释掉return function ( html )中的if
            //if ( isWordDocument( html ) ) {
                html = filterPasteWord( html );
            //}
但是表格宽度不变？
我用这个表格测试的（有两处不同的table width）：<table width="1800" bordercolor="#003366" style="width: 1000px;height:300px;">
  <tr>
    <td>11</td>
    <td width="900" height="60">12</td>
  </tr>
  <tr width="1900" height="70">
    <td>21</td>
    <td>22</td>
  </tr>
</table>审查元素是这样：
<table width="1800" bordercolor="#003366" style="font-size:15px;line-height:22px;height:300px">
没有变成期望的style="width: 800px;"