js如何改变src属性指向页面的部分内容？</h1></div> <div class="user-card" data-v-0c168368><div class="user-title flex align-center" data-v-21e3c89c data-v-0c168368><a href="https://blog.csdn.net/j_cow" target="_blank" class="flex align-center" data-v-21e3c89c><img src="https://profile-avatar.csdnimg.cn/356c869555eb450ba2df24facf50bf84_j_cow.jpg!1" alt class="head" data-v-21e3c89c> <span class="name" data-v-21e3c89c>江子抑</span></a> <span class="cop flex1" data-v-21e3c89c>   <span class="cop-p time" data-v-21e3c89c>2014-08-23 12:48:06</span> </span> <div class="foot-btn-more" data-v-21e3c89c> </div></div></div>    <div id="blogDetail2" class="markdown_views htmledit_views" data-v-0c168368><iframe>所在页面：example.html中：<br /> <pre><code class="language-html"><br /> <iframe src="templates/right.html" id="right1" name="right1"></iframe><br /> </code></pre><br /> <br /> src指向页面right.html<body>中部分内容<br /> <pre><code class="language-html"><br /> <p class="singer" id="singer">singer</p><br /> <p class="songs" id="songs">songs</p><br /> </code></pre><br /> <br /> 替换<p class="singer" id="singer">singer</p>内容在example.html中添加如下js:<br /> <pre><code class="language-javascript"><br /> <script> <br /> var iObj = document.getElementById('right1').contentDocument; <br /> iObj.getElementById('singer').innerHTML="歌手";<br /> </script><br /> </code></pre><br /> <br /> 火狐浏览器控制台显示：TypeError: iObj.getElementById(...) is null<br /> <br /> <iframe>内的内容如何通过js进行替换呢？请大神指点</div></div></div></div> <div class="test" data-v-0c168368> ...全文 </div> </div>      <div class="vote-outer" style="margin-bottom: 16px;" data-v-56585d28><div class="vote-content" data-v-6331320d data-v-56585d28></div></div> <div class="rates-outer flex align-items-center" data-v-756eb1fa data-v-56585d28> <div role="slider" aria-valuenow="0" aria-valuemin="0" aria-valuemax="5" tabindex="0" class="el-rate" data-v-756eb1fa><span class="el-rateitem" style="cursor:pointer;"><i class="el-rateicon el-icon-star-off" 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class="tool-icon icon-reply" data-v-d10a0ac8></i><span data-v-d10a0ac8>5</span></span>  <span class="pay-money" data-v-d10a0ac8><i class="tool-icon icon-pay" data-v-d10a0ac8></i><span data-v-d10a0ac8>打赏</span></span> <span data-report-click="{"spm":"3001.5987"}" class="collect" data-v-d10a0ac8><i class="tool-icon icon-collect" data-v-d10a0ac8></i>收藏</span> <div class="handle-item share" data-v-ca030a68 data-v-d10a0ac8><span height="384" data-v-ca030a68><div role="tooltip" id="el-popover-9579" aria-hidden="true" class="el-popover el-popper popo share-popover" style="width:265px;display:none;"><div id="tool-QRcode" class="QRcode" data-v-ca030a68><img src="https://csdnimg.cn/release/cmsfe/public/img/shareBg2.05330abf.png" alt="" class="share-bg" data-v-ca030a68> <div class="share-bg-box" data-v-ca030a68><div class="share-content" data-v-ca030a68><img src="https://profile-avatar.csdnimg.cn/356c869555eb450ba2df24facf50bf84_j_cow.jpg!1" alt="" class="share-avatar" data-v-ca030a68> <div class="share-tit" data-v-ca030a68>js如何改变<iframe>src属性指向页面的部分内容？</div> <div class="share-dec" data-v-ca030a68>所在页面：example.html中： src指向页面right.html中部分内容 singer songs 替换singer内</div> <span class="copy-share-url" data-v-ca030a68>复制链接</span> <div class="shareText" data-v-ca030a68> </div></div> <div class="share-code" data-v-ca030a68><div class="qrcode" data-v-ca030a68></div> <div class="share-code-text" data-v-ca030a68>扫一扫</div></div></div></div> </div><span class="el-popover__reference-wrapper"><div class="tool-btn share" data-v-d10a0ac8><i class="cty-share" data-v-d10a0ac8></i> <span data-v-d10a0ac8>分享</span></div></span></span></div> <span class="blink-btn" data-v-d10a0ac8><i class="icon-blink" data-v-d10a0ac8></i> <span data-v-d10a0ac8>转发到动态</span></span>   <span class="report" data-v-d10a0ac8><i class="tool-icon icon-report" data-v-d10a0ac8></i><span data-v-d10a0ac8>举报</span></span> <div class="edit-item" data-v-829a41e2 data-v-d10a0ac8></div>  <a 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alt="" class="close"></div></div><div class="el-dialog__footer"><span class="dialog-footer"><div class="pay-number"><span>需支付:</span> <span>0.00 </span> <span>元</span></div> <button type="button" class="el-button el-button--default el-button--middle"><span>取消</span></button> <button type="button" class="el-button el-button--primary disable submit"><span>确定</span></button></span></div></div></div></div> <div class="comment-box" data-v-aeae4ab6><div id="commentMsgId" class="commentMsg" data-v-395b6e48 data-v-aeae4ab6><div data-v-395b6e48><div id="398046912" class="comment-item" data-v-395b6e48><div class="comment-box" data-v-395b6e48><div class="head-img" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/yukon12345" data-v-395b6e48><img src="https://profile-avatar.csdnimg.cn/98a752d5642d4b89b5570aace09322a5_yukon12345.jpg!1" alt data-v-395b6e48></a></div> <div class="comment-main" data-v-395b6e48><div class="user-msg" data-v-395b6e48><div class="info-card" data-v-395b6e48><span class="name" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/yukon12345" class="name" data-v-395b6e48>步慢生错</a>   <span class="time" data-v-395b6e48>2014-08-23</span></span> </div> <div class="user-operate clearTpaErr" data-v-395b6e48><span class="operate" data-v-395b6e48><i class="icon icon-operate" data-v-395b6e48></i> <div class="option-box" data-v-395b6e48><ul class="ul-box" data-v-395b6e48><li data-v-395b6e48>打赏</li><li data-v-395b6e48>举报</li></ul></div></span> <span data-report-click="{"spm":"3001.5991"}" class="reply" data-v-395b6e48><i class="icon icon-reply" data-v-395b6e48></i> <span data-v-395b6e48>回复</span></span>   <span data-report-click="{"spm":"3001.5992"}" class="love" data-v-395b6e48> <i class="icon" data-v-395b6e48></i></span></div></div> <div class="comment-msg" data-v-395b6e48><div class="msg" data-v-395b6e48> <span id="text-398046912" class="text rich-text blog-content-box htmledit_views markdown_views" data-v-395b6e48>最简单的，就是在iframe引用的页面里写 parent.setSinger() 父页面写setSInger的实现函数。</span></div></div> </div></div> <div class="comment-child flat-child" data-v-395b6e48></div></div><div id="398046788" class="comment-item" data-v-395b6e48><div class="comment-box" data-v-395b6e48><div class="head-img" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/J_cow" data-v-395b6e48><img src="https://profile-avatar.csdnimg.cn/356c869555eb450ba2df24facf50bf84_j_cow.jpg!1" alt data-v-395b6e48></a></div> <div class="comment-main" data-v-395b6e48><div class="user-msg" data-v-395b6e48><div class="info-card" data-v-395b6e48><span class="name" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/J_cow" class="name" data-v-395b6e48>江子抑</a>   <span class="time" data-v-395b6e48>2014-08-23</span></span> </div> <div class="user-operate clearTpaErr" data-v-395b6e48><span class="operate" data-v-395b6e48><i class="icon icon-operate" data-v-395b6e48></i> <div class="option-box" data-v-395b6e48><ul class="ul-box" data-v-395b6e48><li data-v-395b6e48>打赏</li><li data-v-395b6e48>举报</li></ul></div></span> <span data-report-click="{"spm":"3001.5991"}" class="reply" data-v-395b6e48><i class="icon icon-reply" data-v-395b6e48></i> <span data-v-395b6e48>回复</span></span>   <span data-report-click="{"spm":"3001.5992"}" class="love" data-v-395b6e48> <i class="icon" data-v-395b6e48></i></span></div></div> <div class="comment-msg" data-v-395b6e48><div class="msg" data-v-395b6e48> <span id="text-398046788" class="text rich-text blog-content-box htmledit_views markdown_views" data-v-395b6e48><fieldset><legend class="font_bold">引用 3 楼 showbo 的回复:</legend><blockquote>你那个代码在哪里执行的？应该是iframe还没有加载完毕导致找不到对象 <pre><code class="language-html"> <iframe src="templates/right.html" id="right1" name="right1" onload="setSinger()"></iframe> <script> function setSinger(){ var iObj = document.getElementById('right1').contentWindow.document; iObj.getElementById('singer').innerHTML="歌手"; } </script></code></pre></blockquote></fieldset> js语句是写在<iframe>之后的请问<iframe>是什么时候加载完毕呢？</span></div></div> </div></div> <div class="comment-child flat-child" data-v-395b6e48></div></div><div id="398046683" class="comment-item" data-v-395b6e48><div class="comment-box" data-v-395b6e48><div class="head-img" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/showbo" data-v-395b6e48><img src="https://profile-avatar.csdnimg.cn/6bf05159298c43649d465b6ca7905f30_showbo.jpg!1" alt data-v-395b6e48></a></div> <div class="comment-main" data-v-395b6e48><div class="user-msg" data-v-395b6e48><div class="info-card" data-v-395b6e48><span class="name" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/showbo" class="name" data-v-395b6e48>斯洛文尼亚旅游</a>   <span class="time" data-v-395b6e48>2014-08-23</span></span> </div> <div class="user-operate clearTpaErr" data-v-395b6e48><span class="operate" data-v-395b6e48><i class="icon icon-operate" data-v-395b6e48></i> <div class="option-box" data-v-395b6e48><ul class="ul-box" data-v-395b6e48><li data-v-395b6e48>打赏</li><li data-v-395b6e48>举报</li></ul></div></span> <span data-report-click="{"spm":"3001.5991"}" class="reply" data-v-395b6e48><i class="icon icon-reply" data-v-395b6e48></i> <span data-v-395b6e48>回复</span></span>   <span data-report-click="{"spm":"3001.5992"}" class="love" data-v-395b6e48> <i class="icon" data-v-395b6e48></i></span></div></div> <div class="comment-msg" data-v-395b6e48><div class="msg" data-v-395b6e48> <span id="text-398046683" class="text rich-text blog-content-box htmledit_views markdown_views" data-v-395b6e48>你那个代码在哪里执行的？应该是iframe还没有加载完毕导致找不到对象 <pre><code class="language-html"> <iframe src="templates/right.html" id="right1" name="right1" onload="setSinger()"></iframe> <script> function setSinger(){ var iObj = document.getElementById('right1').contentWindow.document; iObj.getElementById('singer').innerHTML="歌手"; } </script></code></pre></span></div></div> </div></div> <div class="comment-child flat-child" data-v-395b6e48></div></div><div id="398046628" class="comment-item" data-v-395b6e48><div class="comment-box" data-v-395b6e48><div class="head-img" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/J_cow" data-v-395b6e48><img src="https://profile-avatar.csdnimg.cn/356c869555eb450ba2df24facf50bf84_j_cow.jpg!1" alt data-v-395b6e48></a></div> <div class="comment-main" data-v-395b6e48><div class="user-msg" data-v-395b6e48><div class="info-card" data-v-395b6e48><span class="name" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/J_cow" class="name" data-v-395b6e48>江子抑</a>   <span class="time" data-v-395b6e48>2014-08-23</span></span> </div> <div class="user-operate clearTpaErr" data-v-395b6e48><span class="operate" data-v-395b6e48><i class="icon icon-operate" data-v-395b6e48></i> <div class="option-box" data-v-395b6e48><ul class="ul-box" data-v-395b6e48><li data-v-395b6e48>打赏</li><li data-v-395b6e48>举报</li></ul></div></span> <span data-report-click="{"spm":"3001.5991"}" class="reply" data-v-395b6e48><i class="icon icon-reply" data-v-395b6e48></i> <span data-v-395b6e48>回复</span></span>   <span data-report-click="{"spm":"3001.5992"}" class="love" data-v-395b6e48> <i class="icon" data-v-395b6e48></i></span></div></div> <div class="comment-msg" data-v-395b6e48><div class="msg" data-v-395b6e48> <span id="text-398046628" class="text rich-text blog-content-box htmledit_views markdown_views" data-v-395b6e48><fieldset><legend class="font_bold">引用 1 楼 zzgzzg00 的回复:</legend><blockquote>contentDocument改成 contentWindow.document 试试</blockquote></fieldset> 还是一样的错误提示</span></div></div> </div></div> <div class="comment-child flat-child" data-v-395b6e48></div></div><div id="398046609" class="comment-item" data-v-395b6e48><div class="comment-box" data-v-395b6e48><div class="head-img" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/zzgzzg00" data-v-395b6e48><img src="https://profile-avatar.csdnimg.cn/58f3d030405e49a599663d66c4e5ce4f_zzgzzg00.jpg!1" alt data-v-395b6e48></a></div> <div class="comment-main" data-v-395b6e48><div class="user-msg" data-v-395b6e48><div class="info-card" data-v-395b6e48><span class="name" data-v-395b6e48><a target="_blank" href="https://blog.csdn.net/zzgzzg00" class="name" data-v-395b6e48>似梦飞花</a>   <span class="time" data-v-395b6e48>2014-08-23</span></span> </div> <div class="user-operate clearTpaErr" data-v-395b6e48><span class="operate" data-v-395b6e48><i class="icon icon-operate" data-v-395b6e48></i> <div class="option-box" data-v-395b6e48><ul class="ul-box" data-v-395b6e48><li data-v-395b6e48>打赏</li><li data-v-395b6e48>举报</li></ul></div></span> <span data-report-click="{"spm":"3001.5991"}" class="reply" data-v-395b6e48><i class="icon icon-reply" data-v-395b6e48></i> <span data-v-395b6e48>回复</span></span>   <span data-report-click="{"spm":"3001.5992"}" class="love" data-v-395b6e48> <i class="icon" data-v-395b6e48></i></span></div></div> <div class="comment-msg" data-v-395b6e48><div class="msg" data-v-395b6e48> <span id="text-398046609" class="text rich-text blog-content-box htmledit_views markdown_views" data-v-395b6e48>contentDocument改成 contentWindow.document 试试</span></div></div> </div></div> <div class="comment-child flat-child" data-v-395b6e48></div></div> </div> </div> </div> </div> <xg-player examineInfo="[object Object]" optionsConfig="[object Object]" data-v-4a5a7f56></xg-player> <div class="recommendList" data-v-ca2d15ac data-v-4a5a7f56><div data-report-view="{"mod":"popu_645","index":"1","dest":"https://download.csdn.net/download/liweifengwf/4637393","strategy":"2~default~OPENSEARCH~Paid","extra":"{\"utm_medium\":\"distribute.pc_relevant_bbs_down_v2.none-task-download-2~default~OPENSEARCH~Paid-1-4637393-bbs-390869068.264^v3^pc_relevant_bbs_down_v2_default\",\"dist_request_id\":\"1751340843529_07724\"}","spm":"1035.2023.3001.6557"}" class="list-item" 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