EnPlaceholder插件支持密码框哦!实际对比同类的placeholder插件在ie等浏览器下效果要好很多!下面我们来具体探讨下此插件的使用方法吧。
用法:
首先在head中分别引入jQuery及本插件
- <script type="text/javascript" src="jquery-1.7.2.min.js">script>
- <script type="text/javascript" src="jquery.enplaceholder.js">script>
然后就可以调用鸟
- //通过value模拟placeholder
- $('input').placeholder();
- //通过插入元素模拟placeholder
- $('input').placeholder({isUseSpan:true});
代码:
- <script type="text/javascript" src="/demo/js/jquery.min.js"></script><script type="text/javascript" src="/demo/js/38/jquery.enplaceholder.js"></script>
- <style type="text/css">
- body { font: 12px/1.5 'simsun'; }
- form { width: 420px; height: 260px; margin: 20px auto 0; }
- h3 { font-weight: bold; margin: 10px 0; }
- p { margin-bottom: 10px; }
- input { vertical-align: middle; margin-left: 10px; height: 24px; line-height: 24px; width: 200px; padding-left: 2px; }
- textarea { vertical-align: middle; margin-left: 10px; width: 200px; height: 50px; font: inherit; padding-left: 2px; }
- .wrap-statistics { visibility: hidden; }
- html{color:#000;background:#fff;}
- body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,form,input,textarea,p,th,td,hr,button{margin:0;padding:0;}
- body,button,input,select,textarea{font:12px/1.5 tahoma,arial;}
- input,select,textarea{font-size:100%;}
- table{border-collapse:collapse;border-spacing:0;}
- th{text-align:inherit;}
- img{border:0;}
- iframe{display:block;}
- em,th{font-style:normal;font-weight:500;}
- ol,ul {list-style:none;}
- h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:500;}
- a{text-decoration:none;}
- a:hover{text-decoration:underline;}
- .fn-clear{zoom:1;}
- .fn-clear:after{visibility:hidden;display:block;font-size:0;content:".";clear:both;height:0;}
- .fn-hide{display:none;}
- .fn-left,.fn-right{display:inline;}
- .fn-left{float:left;}
- .fn-right{float:right;}
- .fn-hide-text{font-size:0;line-height:0;color:rgba(0,0,0,0);}
- .sl-wrap,.sl-wrap td,.sl-wrap th{word-wrap:break-word;word-break:break-all;}
- .sl-wrap-table{ table-layout:fixed; }</style>
- <form id="form1">
- <h3>通过value方式模拟placeholder</h3>
- <p>$('#form1 input,#form1 textarea').placeholder();</p>
- <p><label for="username1">用户名:</label> <input id="username1" name="username1" placeholder="请输入用户名" required="" type="text" value="" /></p>
- <p><label for="address1">地 址:</label> <input id="address1" name="address1" placeholder="请输入地址" required="" type="text" value="" /></p>
- <p><label for="remarks1">备 注:</label></p>
- </form>
- <form id="form2">
- <h3>在不支持placeholder的浏览器下,通过插入悬浮的span元素方式模拟</h3>
- <h4>文本框内容改变时placeholder消失:</h4>
- <p>$('#username2,#password').placeholder({isUseSpan:true});</p>
- <p><label for="username2">用户名:</label> <input id="username2" name="username1" placeholder="请输入用户名" required="" type="text" value="" /></p>
- <p><label for="password">密 码:</label> <input id="password" name="password" placeholder="请输入密码" required="" type="password" value="" /></p>
- <p><label for="remarks2">备 注:</label></p>
- <h4>获得焦点时placeholder消失:</h4>
- <p>$('#address2').placeholder({isUseSpan:true,onInput:false});</p>
- <p><label for="address2">地 址:</label> <input id="address2" name="address1" placeholder="请输入地址" required="" type="text" value="" /></p>
- </form>
- <script>
- $('#form1 input,#form1 textarea').placeholder();
- $('#username2,#password').placeholder({isUseSpan:true});
- $('#address2').placeholder({isUseSpan:true,onInput:false});
- $('#remarks2').placeholder({isUseSpan:true});
- </script>
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