WebProgramming/day3_javaScript_tuto4_inline.html at master · suyonghan/WebProgramming · GitHub

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style>
#header {
	margin: auto;
}

#main {
	border: 3px solid blue;
	text-align: center;
}

#result {
	margin: auto;
}
</style>
</head>
<body>
	<script>
		window.onload = function() {
			var arr = new Array();
			document.getElementById('1').onclick = function(){
				gugu(1);
				document.getElementById('1').onclick = null;
			}
			document.getElementById('2').onclick = function(){
				gugu(2);document.getElementById('2').onclick = null;
			}
			document.getElementById('3').onclick = function(){
				gugu(3);document.getElementById('3').onclick = null;
			}
			document.getElementById('4').onclick = function(){
				gugu(4);document.getElementById('4').onclick = null;
			}
			document.getElementById('5').onclick = function(){
				gugu(5);document.getElementById('5').onclick = null;
			}
			document.getElementById('6').onclick = function(){
				gugu(6);document.getElementById('6').onclick = null;
			}
			document.getElementById('7').onclick = function(){
				gugu(7);document.getElementById('7').onclick = null;
			}
			document.getElementById('8').onclick = function(){
				gugu(8);document.getElementById('8').onclick = null;
			}
			document.getElementById('9').onclick = function(){
				gugu(9);document.getElementById('9').onclick = null;
			}
		}
		function gugu(num) {
			var result = "";
			for (var i = 1; i <= 9; ++i) {
				result += num + " * " + i + " = " + (num * i) + "<br>";
			}
			document.getElementById("result").innerHTML = result;
		}
	</script>
	<div id='main'>
		<header id="header">
			<h2>구구단</h2>
		</header>
		<br>
		<button id='1'>1단</button>
		<button id='2'>2단</button>
		<button id='3'>3단</button>
		<button id='4'>4단</button>
		<button id='5'>5단</button>
		<button id='6'>6단</button>
		<button id='7'>7단</button>
		<button id='8'>8단</button>
		<button id='9'>9단</button>
		<br>

		<h5 id='result'></h5>
	</div>
</body>
</html>