1、先上效果图

2、调用方式

<link href="/Styles/tagsinput.css" rel="external nofollow" rel="stylesheet" type="text/css" /><script src="/Scripts/jquery-1.4.1.min.js" type="text/javascript"></script><script src="/Scripts/jquery.tagsinput.js" type="text/javascript"></script><script type="text/javascript">$(function () {$("#txtTags").TagsInput({usedTags: "css|js|jquery|html|C#|.net|web",hotTags: "hotTag1|hotTag2|hotTag3|hotTag4",tagNum: 10,maxWords: 10});});</script>

html页面调用

<input type="text" value="逗号|分号|空格|Tab|回车键" name="txtTags" id="txtTags" />

3、tagsinput.css样式

.clearfix:after{clear: both;content: " ";display: block;height: 0;}.tags-wrapper{width: 500px;position:relative;}#addTagWrap{background: none repeat scroll 0 0 #FFFFFF;border: 1px solid #D9D9D9;padding: 0 5px;}#addTagWrap .inner-tag-wrapper,.layer-tag-name{background: none repeat scroll 0 0 #40A8CD;border-radius: 3px;color: #FFFFFF;float: left;height: 26px;line-height: 26px;margin: 4px 6px 0 0;padding: 0 5px 0 10px;white-space: nowrap;}#addTagWrap .inner-tag-close{color: #A0D4E6;font-family: "宋体" ,sans-serif;margin-left: 4px;text-decoration: none;}#tagInput{background: none repeat scroll 0 0 #FFFFFF;border: medium none;margin: 0;height: 24px;line-height: 24px;overflow: hidden;padding: 5px;width: 215px;}#tagInput:focus{ outline:none }.layer-tags-wrapper{border: 1px solid #DADADA;border-top:0;overflow: auto;position:absolute;left:0;right:0;display:none;background: none repeat scroll 0 0 #FFFFFF;}.layer-tags-wrapper .layer-tags-box{padding: 0 5px;}.layer-tags-wrapper .layer-tags-left{float: left;text-align: center;padding-right: 5px;margin-top: 4px;height: 26px;line-height: 26px;}.layer-tags-wrapper .layer-tags-right{overflow: auto;}.layer-tags-wrapper .layer-tag-name{padding-right: 10px;text-decoration: none;}.layer-tags-foot{height: 30px;line-height: 30px;color: #999999;padding-left:5px;}.layer-tags-foot-top{margin-top:5px;border-top:1px dotted #C9C9C9;}.message-box{background: none repeat scroll 0 0 rgba(0, 0, 0, 0.35);color: #FFFFFF;width: 300px;min-height: 50px;line-height: 50px;top: 50%;left: 50%;margin-top: -50px; margin-left: -150px; position: fixed !important; position: absolute; z-index: 999;text-align: center;border-radius: 5px;}

4、jquery.tagsinput.js

/*仿百度标签输入v0.1* @name jquery.tagsinput.js* @version 0.1* @author liping* @date 2014/06/10* @Email:272323108@qq.com*/(function ($) {$.fn.TagsInput = function (options) {//默认参数var defaults = {usedTags: "",hotTags: "",tagNum: 0,maxWords: 0};//用传入参数覆盖了默认值var opts = $.extend(defaults, options);//对象var $this = $(this);$this.hide();var arrayTags;var strHtml;strHtml = "<div class=\"tags-wrapper clearfix\">";strHtml += "<div id=\"addTagWrap\" ><div class=\"added-tags-wrapper\"></div>";strHtml += "<input id=\"tagInput\" type=\"text\" placeholder=\"添加标签，以逗号、分号或空格隔开\" autocomplete=\"off\">";strHtml += "</div><div class=\"layer-tags-wrapper\">";if (opts.usedTags != "") {strHtml += "<div class=\"clearfix layer-tags-box\"><div class=\"layer-tags-left\">记忆标签</div><div class=\"layer-tags-right\">";arrayTags = opts.usedTags.split('|');for (i = 0; i < arrayTags.length; i++) {strHtml += "<a class=\"layer-tag-name\" href=\"javascript:;\">" + arrayTags[i] + "</a>";}strHtml += "</div></div>";}if (opts.hotTags != "") {strHtml += "<div class=\"clearfix layer-tags-box\"><div class=\"layer-tags-left\">热门标签</div><div class=\"layer-tags-right\">";arrayTags = opts.hotTags.split('|');for (i = 0; i < arrayTags.length; i++) {strHtml += "<a class=\"layer-tag-name\" href=\"javascript:;\">" + arrayTags[i] + "</a>";}strHtml += "</div></div>";}if (opts.tagNum != 0 && opts.maxWords != 0) {strHtml += "<div class=\"layer-tags-foot clearfix \">最多可添加" + opts.tagNum + "个标签，每个标签不超过" + opts.maxWords + "个汉字</div>";}else if (opts.tagNum != 0 && opts.maxWords == 0) {strHtml += "<div class=\"layer-tags-foot clearfix \">最多可添加" + opts.tagNum + "个标签</div>";}else if (opts.tagNum == 0 && opts.maxWords != 0) {strHtml += "<div class=\"layer-tags-foot clearfix \">每个标签不超过" + opts.maxWords + "个汉字</div>";}else {strHtml += "<div class=\"layer-tags-foot clearfix \">标签个数最好少于10个，每个标签最好不超过10个汉字</div>";}strHtml += "</div></div>";$(strHtml).insertAfter($this);if ($(".layer-tag-name").length > 0) {$(".layer-tags-foot").addClass("layer-tags-foot-top");}var inputTags = $this.val();arrayTags = inputTags.split('|');for (i = 0; i < arrayTags.length; i++) {addTag(arrayTags[i]);}$(".layer-tag-name").each(function () {$(this).click(function () { addTag($(this).text()); });});$("#tagInput").keydown(function (e) {var keyCode = e.which || e.keyCode;if (keyCode == 13 || keyCode == 32 || keyCode == 9) {if (addTag($(this).val())) { $(this).val(""); }return false;}}).keyup(function (e) {var keyCode = e.which || e.keyCode;if (keyCode == 188 || keyCode == 59) {if (addTag($(this).val())) { $(this).val(""); }return false;}}).click(function () {$(".layer-tags-wrapper").show();}).blur(function () {if (addTag($(this).val())) { $(this).val(""); }return false;});$(".tags-wrapper").mouseleave(function () {$(".layer-tags-wrapper").hide();});function addTag(obj) {obj = obj.replace(/[ |,|，|;|；]/g, "");if (obj == "") { return false; }//只统计汉字字数var num = 0;var arr = obj.match(/[^\x00-\xff]/g);if (arr != null) {num = arr.length;if (opts.maxWords > 0 && num > opts.maxWords) {MessageBox("单个标签最多" + opts.maxWords + "个汉字");return false;}num = 0;}var tags = $("#addTagWrap .inner-tag-name");var flag = true;var s = "";tags.each(function () {if ($(this).text() == obj) {flag = false;return false;}num++;s += $(this).text() + "|";});if (opts.tagNum > 0 && num >= opts.tagNum) {MessageBox("最多可添加" + opts.tagNum + "个标签");return false;}if (flag) {$(".added-tags-wrapper").append("<div class=\"inner-tag-wrapper\"><span class=\"inner-tag-name\">" + obj + "</span><a class=\"inner-tag-close\" title=\"删除\" href=\"javascript:;\">×</a></div>");$(".added-tags-wrapper .inner-tag-close:last").click(function () {$(this).parent().remove();});s += obj + "|";if (s.length > 0) {s = s.substring(0, s.length - 1);$this.val(s);}return true;}else {MessageBox("该标签已经存在");return false;}}function MessageBox(obj) {$("<div class=\"message-box\">" + obj + "</div>").appendTo("body");$(".message-box").delay(1000).fadeOut("slow", function () {$(this).remove();});}};})(jQuery);