实例如下所示。，document.getElementById(&#39；text&#39；).value)&quot；/&gt；。function insertAtCursor(myField.myValue) { //IE 浏览器if (document.selection) {myField.focus()；sel = document.selection.createRange()；sel.text = myValue；sel.select()；} //FireFox、Chrome等else if (myField.selectionStart || myField.selectionStart == &#39；0&#39；} myField.focus()。