className用法(Classname usage)

4.className用法例 4.1(keyIEFF.html)<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN”        “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”><html xmlns=”http://www.w3.org/1999/xhtml”><head>    <meta http-equiv=”content-type” content=”text/html; charset=utf-8″/>    <title>    </title>    <script language=”JavaScript” type=”text/javascript”>        function calc(thistextar, Span) {            var len = thistextar.value.length;            Span.innerHTML = len + ‘ 字’;            Span.className = ‘toredC’;        }    </script>    <style type=”text/css”>        <!–        .toredC {            color: #FF0000;        }        –>    </style></head><body><textarea cols=”50″ rows=”3″  onKeyUp=”calc(this,document.getElementById(‘num’))”        ></textarea>(<SPAN id=num>字数</SPAN>)</body></html>更多内容请见原文,文章转载自:https://blog.csdn.net/qq_43650923/article/details/102822703

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4.className用法例 4.1(keyIEFF.html)<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN”        “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”><html xmlns=”http://www.w3.org/1999/xhtml”><head>    <meta http-equiv=”content-type” content=”text/html; charset=utf-8″/>    <title>    </title>    <script language=”JavaScript” type=”text/javascript”>        function calc(thistextar, Span) {            var len = thistextar.value.length;            Span.innerHTML = len + ‘ 字’;            Span.className = ‘toredC’;        }    </script>    <style type=”text/css”>        <!–        .toredC {            color: #FF0000;        }        –>    </style></head><body><textarea cols=”50″ rows=”3″  onKeyUp=”calc(this,document.getElementById(‘num’))”        ></textarea>(<SPAN id=num>字数</SPAN>)</body></html>更多内容请见原文,文章转载自:https://blog.csdn.net/qq_43650923/article/details/102822703