方法: function insertHtmlAtCaret(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.createContextualFr
function pasteHtmlAtCaret(html, selectPastedContent) {//参数1为要插入的html //参数2为boolean 是否选中插入的html 默认为false var sel, range; if (window.getSelection) { // IE9 and non-IE sel = window.getSelection(); if (sel.getRangeAt && sel.rangeCount) { range = sel.g