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<table cellpadding="0" cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 7px; background-color: rgb(230, 230, 230); background-position: 0% 50%; border-width: 1px; border-color: windowtext; border-style: dashed;" valign="top" width="127">接口</td><td style="padding: 0px 7px; border-color: windowtext windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: rgb(230, 230, 230); border-top: 1px dashed windowtext; border-right: 1px dashed windowtext; background-position: 0% 50%;" valign="top" width="257">nodeType常量</td><td style="padding: 0px 7px; border-color: windowtext windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: rgb(230, 230, 230); border-top: 1px dashed windowtext; border-right: 1px dashed windowtext; background-position: 0% 50%;" valign="top" width="90">nodeType值</td><td style="padding: 0px 7px; border-color: windowtext windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: rgb(230, 230, 230); border-top: 1px dashed windowtext; border-right: 1px dashed windowtext; background-position: 0% 50%;" valign="top" width="93">备注</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="127">Element</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="257">Node.ELEMENT_NODE</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="90">1</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="93">元素节点</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="127">Text</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="257">Node.TEXT_NODE</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="90">3</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="93">文本节点</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="127">Document</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="257">Node.DOCUMENT_NODE</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="90">9</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="93">document</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="127">Comment</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="257">Node.COMMENT_NODE</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="90">8</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="93">注释的文本</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="127">DocumentFragment</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="257">Node.DOCUMENT_FRAGMENT_NODE</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="90">11</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="93">document片断</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="127">Attr</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="257">Node.ATTRIBUTE_NODE</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="90">2</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="93">节点属性</td></tr></tbody></table><table cellpadding="0" cellspacing="0"><tbody><tr class="firstRow"><td style="padding: 0px 7px; background-color: rgb(230, 230, 230); background-position: 0% 50%; border-width: 1px; border-color: windowtext; border-style: dashed;" valign="top" width="164">方法</td><td style="padding: 0px 7px; border-color: windowtext windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: rgb(230, 230, 230); border-top: 1px dashed windowtext; border-right: 1px dashed windowtext; background-position: 0% 50%;" valign="top" width="405">描述</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="164">createAttribute()</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="405">用指定的名字创建新的Attr节点。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="164">createComment()</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="405">用指定的字符串创建新的Comment节点。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="164">createElement()</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="405">用指定的标记名创建新的Element节点。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="164">createTextNode()</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="405">用指定的文本创建新的TextNode节点。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="164">getElementById()</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="405">返回文档中具有指定id属性的Element节点。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="164">getElementsByTagName()</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="405">返回文档中具有指定标记名的所有Element节点。</td></tr></tbody></table><table cellpadding="0" cellspacing="0"><thead><tr class="firstRow"><td style="padding: 0px 7px; background-color: rgb(230, 230, 230); background-position: 0% 50%; border-width: 1px; border-color: windowtext; border-style: dashed;" valign="top" width="91">属性</td><td style="padding: 0px 7px; border-color: windowtext windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: rgb(230, 230, 230); border-top: 1px dashed windowtext; border-right: 1px dashed windowtext; background-position: 0% 50%;" valign="top" width="477">描述</td></tr></thead><tbody><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">attributes</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">如果该节点是一个Element，则以NamedNodeMap形式返回该元素的属性。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">childNodes</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">以Node[]的形式存放当前节点的子节点。如果没有子节点，则返回空数组。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">firstChild</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">以Node的形式返回当前节点的第一个子节点。如果没有子节点，则为null。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">lastChild</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">以Node的形式返回当前节点的最后一个子节点。如果没有子节点，则为null。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">nextSibling</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">以Node的形式返回当前节点的兄弟下一个节点。如果没有这样的节点，则返回null。下一个兄弟节点</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">nodeName</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">节点的名字，Element节点则代表Element的标记名称。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">nodeType</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">代表节点的类型。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">parentNode</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">以Node的形式返回当前节点的父节点。如果没有父节点，则为null。</td></tr><tr><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="91">previousSibling</td><td style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="477">以Node的形式返回紧挨当前节点、位于它之前的兄弟节点。如果没有这样的节点，则返回null。上一个兄弟节点</td></tr></tbody></table><table cellpadding="0" cellspacing="0"><tbody><tr class="firstRow"><td class="selectTdClass" style="padding: 0px 7px; background-color: rgb(230, 230, 230); background-position: 0% 50%; border-width: 1px; border-color: windowtext; border-style: dashed;" valign="top" width="115">方法</td><td class="selectTdClass" style="padding: 0px 7px; border-color: windowtext windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: rgb(230, 230, 230); border-top: 1px dashed windowtext; border-right: 1px dashed windowtext; background-position: 0% 50%;" valign="top" width="453">描述</td></tr><tr><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="115">appendChild()</td><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="453">通过把一个节点增加到当前节点的childNodes[]组，给文档树增加节点。</td></tr><tr><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="115">cloneNode()</td><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="453">复制当前节点，或者复制当前节点以及它的所有子孙节点。</td></tr><tr><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="115">hasChildNodes()</td><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="453">如果当前节点拥有子节点，则将返回true。</td></tr><tr><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="115">insertBefore()</td><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="453">给文档树插入一个节点，位置在当前节点的指定子节点之前。如果该节点已经存在，则删除之再插入到它的位置。</td></tr><tr><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="115">removeChild()</td><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="453">从文档树中删除并返回指定的子节点。</td></tr><tr><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext; border-bottom: 1px dashed windowtext; border-left: 1px dashed windowtext; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="115">replaceChild()</td><td class="selectTdClass" style="padding: 0px 7px; border-color: rgb(212, 208, 200) windowtext windowtext rgb(212, 208, 200); border-bottom: 1px dashed windowtext; border-left-width: initial; border-left-style: initial; background-color: transparent; border-top-width: initial; border-top-style: initial; border-right: 1px dashed windowtext;" valign="top" width="453">从文档树中删除并返回指定的子节点，用另一个节点替换它。</td></tr></tbody></table>