계산기를 웹사이트에 구현하면서 자료구조에 대해 진지하게 생각
사용모습 기록 : https://blog.naver.com/wlrudtjs/222094570379
~~~
사용언어 : HTML, CSS, JavaScript
~~~
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="./calcul.css">
<title>calculating machine</title>
<script type="text/javascript" src="./index.js"></script>
</head>
<body>
<table border=0 height=500 width=400 align="center">
<form>
<tr>
<td colspan= 4 bgcolor="ffdfdc" align="right" height="70" />
<input id="display" type="text" />
</tr>
<tr>
<td colspan= 4 bgcolor="#ffcbc9" align="left" height="60">   result :<input id="result" type="text" />
</td>
</tr>
<tr>
<td>
<input type="reset" name="reset" value="AC" class="button3" />
</td>
<td>
<input type="button" name="plus_min" value="+/-" class="button3" />
</td>
<td>
<input type="button" onclick="addOutput('%')" value="%" class="button3" />
</td>
<td>
<input type="button" onclick="addOutput('/')" value="/" class="button3" />
</td>
</tr>
<tr>
<td>
<input type="button" onclick="addOutput('7')" value="7" class="button"/>
</td>
<td>
<input type="button" onclick="addOutput('8')" value="8" class="button"/>
</td>
<td>
<input type="button" onclick="addOutput('9')" value="9" class="button"/>
</td>
<td>
<input type="button" onclick="addOutput('*')" value="*"class="button3" />
</td>
</tr>
<tr>
<td>
<input type="button" onclick="addOutput('4')" value="4" class="button"/>
</td>
<td>
<input type="button" onclick="addOutput('5')" value="5" class="button"/>
</td>
<td>
<input type="button" onclick="addOutput('6')" value="6" class="button"/>
</td>
<td>
<input type="button" onclick="addOutput('-')" value="-" class="button3" />
</td>
</tr>
<tr>
<td><input type="button" onclick="addOutput('1')" value="1" class="button"/>
</td>
<td>
<input type="button" onclick="addOutput('2')" value="2" class="button"/>
</td>
<td>
<input type="button" onclick="addOutput('3')" value="3" class="button" />
</td>
<td>
<input type="button" onclick="addOutput('+')" value="+" class="button3" />
</td>
</tr>
<tr>
<td colspan=2>
<input type="button" onclick="addOutput('0')" value="0" class="button2"/>
</td>
<td>
<input type="button" onclick="addOutput('.')" value="." class="button" />
</td>
<td>
<input type="button" onclick="calculate()" value="=" class="button3" />
</td>
</tr>
</form>
</table>
</body>
</html>function addOutput(num) {
var display = document.getElementById("display");
display.value = display.value + num;
}
function calculate() {
var display = document.getElementById("display");
var result = eval(display.value);
var displayResult = document.getElementById("result");
displayResult.value = result;
}
function reset() {
var display = document.getElementById("display");
display.value = "";
var displayResult = document.getElementById("result");
displayResult.value = "";
}
function del() {
var display = documnet.getElementById("display");
display.value = display.value.substring(0, display.value.length - 1);
}tr{
text-align: center;
}
.button{
border:1x solid #ff0080; /*---테두리 정의---*/
background-Color:#ffe6f2; /*--백그라운드 정의---*/
font:30px 굴림; /*--폰트 정의---*/
font-weight:bold; /*--폰트 굵기---*/
color:#ff0080; /*--폰트 색깔---*/
width:100px;height:100px; /*--버튼 크기---*/
}
.button2{
border:1x solid #ff0080;
background-Color:#ffe6f2;
font:30px 굴림;
font-weight:bold;
color:#ff0080;
width:210px;height:100px;
}
.button3{
border:1x solid #ff0080;
background-Color:#cd919e;
font:30px 굴림;
font-weight:bold;
color:#ff0080;
width:100px;height:100px;
}
#display,
#result {
width: 400px;
height: 50px;
font-size: 60px;
font-weight: bold;
text-align: right;
padding-right: 8px;
color : ffdfdc;
}~~~