html
<p id="content" style="font-size:25px;height:25px;letter-spacing:5px;padding:10px 20px;background-color:#0aa;">天空飘来五个字,那都不是事!</p>
js with jQuery
// 小效果,天空飘来五个字 var showWordOneByOne = function (target) { var text = target.text(), arrStr = text.split(""); tId = null word = ""; target.text(""); tId = setTimeout(function setWord() { word = arrStr.shift(); target.append(word); if (arrStr.length > 0) { tId = setTimeout(setWord, 200); } }, 700); }; showWordOneByOne($("#content"));