<script type="text/javascript">
//com 전역변수
var com = 0;
function ranCom(){
com = parseInt(Math.random()*99)+1; //1~99 랜덤 숫자
console.log("com : " + com);
}
</script>
정답 맞추기
<script type="text/javascript">
function myclick(){
var obj_it = document.getElementById("it");
var obj_div = document.getElementById("my_div");
var mine = obj_it.value;
//mine str -> int 변환
var imine = parseInt(mine);
var line = "";
if(com > imine) {
line = imine + "\tUP<br>";
} else if(com < imine) {
line = imine + "\tDOWN<br>";
} else {
line = imine + "\tANSWER<br>";
alert(mine + " : 정답");
}
var str_old = obj_div.innerHTML;
obj_div.innerHTML = str_old + line;
//#it 값 비우기
obj_it.value = "";
}
원본
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style type="text/css">
#it{
width: 40px;
}
#my_div{
height: 300px;
}
</style>
<script type="text/javascript">
//com 전역변수
var com = 0;
function myclick(){
var obj_it = document.getElementById("it");
var obj_div = document.getElementById("my_div");
var mine = obj_it.value;
var imine = parseInt(mine);
var line = "";
if(com > imine) {
line = imine + "\tUP<br>";
} else if(com < imine) {
line = imine + "\tDOWN<br>";
} else {
line = imine + "\tANSWER<br>";
alert(mine + " : 정답");
}
var str_old = obj_div.innerHTML;
console.log('obj_div.innerHTML',str_old);
console.log('line: ',line);
obj_div.innerHTML = str_old + line;
obj_it.value = "";
}
function ranCom(){
com = parseInt(Math.random()*99)+1;
console.log("com : " + com);
}
</script>
</head>
<!-- onload: html 로딩이 끝난 후 시작 화면에 바로 적용 -->
<body onload="ranCom()">
EX07<br>
<table border="1px">
<tr>
<td>맞출수:</td>
<td>
<input type="text" id="it">
</td>
</tr>
<tr>
<td colspan="2">
<input type="button" value="맞춰보기" onclick="myclick()">
</td>
</tr>
<tr>
<td colspan="2">
<div id="my_div"></div>
</td>
</tr>
</table>
</body>
</html>
