我的第一个html计算器_html/css_WEB-ITnose-HTML Tutorial-php.cn

我的第一个html计算器_html/css_WEB-ITnose

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Release： 2016-06-24 11:20:42

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html代码。

<!DOCTYPE HTML><html><head><style type="text/css">body,#content,#te,#sa,#main-content,ul,li{margin:0 auto;padding:0;font-weight:bold;font-size:50px;}#content{width:300px;height:400px;border:1px solid gray;padding:0px;}.main-content{width:300px;height:250px;border:1px solid red;overflow:hidden;background-color:#BC8F8F;}#te{width:300px;height:80px;border:1px solid black;background:#FFD700;text-align:right;}.main-content ul li{list-style:none;                    width:60px;                    height:50px;                    border:1px solid black;                    border-radius:10px;                    display:block;                    float:left;                    text-align:center;                    cursor:pointer;margin:4px;background-color:#C0C0C0;}#mybtn{width:80px;height:40px;}</style></head><BODY><label></label><div id="content"> <div id="te"><p id="sa"/></p> </div> <div class="main-content">   <ul class="ulclass">    <li>7</li>    <li>8</li>    <li>9</li>    <li>+</li>    <li>4</li>    <li>5</li>    <li>6</li>    <li>-</li>    <li>1</li>    <li>2</li>    <li>3</li>    <li>*</li>    <li>0</li>    <li>.</li>    <li>=</li>    <li>/</li>   </ul></div><input type="button" value="清除"id="mybtn"/></div><script type="text/javascript">var lk=document.getElementById("sa");var btn=document.getElementsByTagName("li")[0];btn.onclick=function(){lk.textContent+="7"; };var btn=document.getElementsByTagName("li")[1];btn.onclick=function(){lk.textContent+="8"; };var btn=document.getElementsByTagName("li")[2];btn.onclick=function(){lk.textContent+="9"; };var btn=document.getElementsByTagName("li")[3];btn.onclick=function(){lk.textContent+="+"; };var btn=document.getElementsByTagName("li")[4];btn.onclick=function(){lk.textContent+="4"; };num5:var btn=document.getElementsByTagName("li")[5];   btn.onclick=function(){   lk.textContent+="5";    };mum6:var btn=document.getElementsByTagName("li")[6];   btn.onclick=function(){   lk.textContent+="6";    };var btn=document.getElementsByTagName("li")[7];   btn.onclick=function(){   lk.textContent+="-";    };var btn=document.getElementsByTagName("li")[8];   btn.onclick=function(){   lk.textContent+="1";    };var btn=document.getElementsByTagName("li")[9];   btn.onclick=function(){   lk.textContent+="2";    };var btn=document.getElementsByTagName("li")[10];   btn.onclick=function(){   lk.textContent+="3";    };var btn=document.getElementsByTagName("li")[11];   btn.onclick=function(){   lk.textContent+="*";    };var btn=document.getElementsByTagName("li")[15];   btn.onclick=function(){   lk.textContent+="/";    };var btn=document.getElementsByTagName("li")[12];    btn.onclick=function(){    lk.textContent+="0"; };var btn=document.getElementsByTagName("li")[13];    btn.onclick=function(){    lk.textContent+="."; };  result:var btn=document.getElementsByTagName("li")[14];        btn.onclick=function(){          lk.textContent=(lk.textContent+"=").toString()+eval(lk.textContent);};clear:var gg=document.getElementById('mybtn')        gg.onclick=function(){         lk.innerHTML="";              }</script></body></html>

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