<style type="text/css">
.style1{
width:60px;
height:60px;
text-align:center;
}
.style2{
border-style: inset;
width: 340px;
height:40px;
cursor: auto;/*光标属性*/
top: 0px;
left: 243px;
overflow:auto; /*overflow 属性规定如何处理如何处理不符合元素框的内容。*/
resize:none;
overflow-x:hidden;
overflow-y:hidden
}
.style3{
/*text-align:"center";*/
border:1px red solid";
width:300px;
height:240px;
}
.style3 input{
height:59px;
width:59px;
}
.style4{
background-image:url(a.jpg);
text-align:center;
margin:0 auto;
background-color:gray;
width:360px;
}
#Buttonjia{
height:120px;
width:59px;
}
</style>
<script>
var valueone="";
function Button_click(valuetwo){
valueone=valueone+valuetwo;
document.getElementById("text").value=valueone;
return true;
}
function Calculate(valuethree){
try{
document.getElementById("text").value=valueone+valuethree+eval(document.getElementById("text").value);
}catch (excp) {
document.getElementById("text").innerHTML = "<font color=\"red\">您输入的表达式有错误，请检查后重新计算！！！！</font>";
}
return true;
}
function Removeall() {
valueone= "";
document.getElementById("text").innerHTML = "";
return true;
}
var oLink = document.createElement("");
oLink.href = "#";
</script>
<div class="style4" >
<form >
<div align=center>
<textarea class="style2" id="text" name="text01" readonly="readonly"style="font-size:30px;margin:6px auto 2px auto;" ></textarea>
</div>
<table class="style3" align=center>
<tr>
<td class="style1"><input id="Button1" type="button" value="1"onclick="return Button_click('1')" /></td>
<td class="style1"><input id="Button2" type="button" value="2"onclick="return Button_click('2')" /></td>
<td class="style1"><input id="Button3" type="button" value="3"onclick="return Button_click('3')" /></td>
<td class="style1"><input id="Button(" type="button" value="("onclick="return Button_click('(')" /></td>
<td class="style1"><input id="Button)" type="button" value=")"onclick="return Button_click(')')" /></td>
</tr>
<tr>
<td class="style1"><input id="Button4" type="button" value="4"onclick="return Button_click('4')" /></td>
<td class="style1"><input id="Button5" type="button" value="5"onclick="return Button_click('5')" /></td>
<td class="style1"><input id="Button6" type="button" value="6"onclick="return Button_click('6')" /></td>
<td class="style1"><input id="Button*" type="button" value="*"onclick="return Button_click('*')" /></td>
<td class="style1"><input id="Button/" type="button" value="/"onclick="return Button_click('/')" /></td>
</tr>
<tr>
<td class="style1"><input id="Button7" type="button" value="7"onclick="return Button_click('7')" /></td>
<td class="style1"><input id="Button8" type="button" value="8" onclick="return Button_click('8')" /></td>
<td class="style1"><input id="Button9" type="button" value="9" onclick="return Button_click('9')" /></td>
<td rowspan=2 class="style1"><input id="Buttonjia" type="button" value="+" onclick="return Button_click('+')"/></td>
<td class="style1"><input id="Button-" type="button" value="-" onclick="return Button_click('-')" /></td>
</tr>
<tr>
<td class="style1"><input id="reset01" type="reset" value="重置"onclick="return Removeall()" /></td>
<td class="style1"><input id="Button00" type="button" value="0"onclick="return Button_click('0')" /></td>
<td class="style1"><input id="Button." type="button" value="." onclick="return Button_click('.')" /></td>
<td class="style1"><input id="Button=" type="button" value="=" onclick="return Calculate('=')" /> </td>
</tr>
</table>
</form>
</div>
个人博客源地址：http://qtbk.xyz/?p=151
