在大多数浏览器中，您可以使用
insertNode()从选择中获得的范围方法。
pasteHTML()如前所述，在IE
<9中，您可以使用。以下是在所有主要浏览器中执行此操作的功能。如果已经选择了内容，则将其替换，因此这实际上是粘贴操作。另外，我添加了代码以将插入符号放置在插入内容的末尾之后。
码：
function pasteHtmlAtCaret(html) { var sel, range; if (window.getSelection) { // IE9 and non-IE sel = window.getSelection(); if (sel.getRangeAt && sel.rangeCount) { range = sel.getRangeAt(0); range.deleteContents(); // Range.createContextualFragment() would be useful here but is // only relatively recently standardized and is not supported in // some browsers (IE9, for one) var el = document.createElement("div"); el.innerHTML = html; var frag = document.createdocumentFragment(), node, lastNode; while ( (node = el.firstChild) ) { lastNode = frag.appendChild(node); } range.insertNode(frag); // Preserve the selection if (lastNode) { range = range.cloneRange(); range.setStartAfter(lastNode); range.collapse(true); sel.removeAllRanges(); sel.addRange(range); } } } else if (document.selection && document.selection.type != "Control") { // IE < 9 document.selection.createRange().pasteHTML(html); }}根据注释的要求，这是一个带有附加参数的更新示例，该附加参数指定是否选择插入的内容。
码：
function pasteHtmlAtCaret(html, selectPastedContent) { var sel, range; if (window.getSelection) { // IE9 and non-IE sel = window.getSelection(); if (sel.getRangeAt && sel.rangeCount) { range = sel.getRangeAt(0); range.deleteContents(); // Range.createContextualFragment() would be useful here but is // only relatively recently standardized and is not supported in // some browsers (IE9, for one) var el = document.createElement("div"); el.innerHTML = html; var frag = document.createdocumentFragment(), node, lastNode; while ( (node = el.firstChild) ) { lastNode = frag.appendChild(node); } var firstNode = frag.firstChild; range.insertNode(frag); // Preserve the selection if (lastNode) { range = range.cloneRange(); range.setStartAfter(lastNode); if (selectPastedContent) { range.setStartBefore(firstNode); } else { range.collapse(true); } sel.removeAllRanges(); sel.addRange(range); } } } else if ( (sel = document.selection) && sel.type != "Control") { // IE < 9 var originalRange = sel.createRange(); originalRange.collapse(true); sel.createRange().pasteHTML(html); if (selectPastedContent) { range = sel.createRange(); range.setEndPoint("StartToStart", originalRange); range.select(); } }}
