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[javascript] 전자 계산기 자바스크립트
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https://cmd.kr/javascript/506 URL이 복사되었습니다.

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<html>
<head>
 
<script>
function press(com){
s1=document.screen.display
s2=document.screen.expr
if (com=="=")
{if(s1.value==""){s1.value=eval(s2.value)}
else {s1.value=eval(s1.value);}}
else if (com=="ac")
{s1.value="";s2.value=""}
else{document.screen.display.value+=com}
}
//eval 을 거쳐야지만 문자가 아닌 숫자로 된다.

function off(){
document.bgColor="black"
}

function on(){
document.bgColor="orange"
}

</script>
</head>
<body>

<form name="screen">
<table border=1 bordercolor="#3399FF" height="30">
    <tr>
    <td colspan=4><input type="text" name="display" onFocus="blur()"></td>
 </tr>
 
 <tr>
        <td bgcolor="#00FFFF"><input type="button" value="  1  " onClick="press('1')"></td>
        <td bgcolor="#00CCFF"><input type="button" value="  2  " onClick="press('2')"></td>
        <td bgcolor="#0099FF"><input type="button" value="  3  " onClick="press('3')"></td>
        <td bgcolor="#0066FF"><input type="button" value="  ÷  " onClick="press('/')"></td>
    </tr>

 <tr>
        <td bgcolor="#FFFF00"><input type="button" value="  4  " onClick="press('4')"></td>
        <td bgcolor="#FFCC00"><input type="button" value="  5  " onClick="press('5')"></td>
        <td bgcolor="#FF9900"><input type="button" value="  6  " onClick="press('6')"></td>
        <td bgcolor="#FF6600"><input type="button" value="  ×  " onClick="press('*')"></td>
    </tr>
   
 <tr>
        <td bgcolor="#00FF00"><input type="button" value="  7  " onClick="press('7')"></td>
        <td bgcolor="#00CC00"><input type="button" value="  8  " onClick="press('8')"></td>
        <td bgcolor="#009900"><input type="button" value="  9  " onClick="press('9')"></td>
        <td bgcolor="#006600"><input type="button" value="  -  " onClick="press('-')"></td>
    </tr>
   
 <tr>
        <td bgcolor="#99CC00"><input type="button" value="  0  " onClick="press('0')"></td>
        <td bgcolor="#996600"><input type="button" value="  .  " onClick="press('.')"></td>
        <td bgcolor="#993300"><input type="button" value=" %  " onClick="press('%')"></td>
        <td bgcolor="#990033"><input type="button" value="  +  " onClick="press('+')"></td>
    </tr>
 
 <tr>
        <td bgcolor="#CCCCFF"><input type="button" value=" ac " onClick="press('ac')"></td>
        <td bgcolor="#CC66FF"><input type="button" value=" on " onClick=on()></td>
        <td bgcolor="#9900FF"><input type="button" value=" off " onClick=off()></td>
        <td bgcolor="#663399"><input type="button" value="  =  " onClick="press('=')"></td>
    </tr>
<TR>
<TD COLSPAN=4><INPUT TYPE=TEXT NAME=expr></TD>
<TR>
</table>

</body>

</html>
 
[이 게시물은 VIRHAC님에 의해 2009-09-13 14:40:14 HTML에서 이동 됨]

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