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氣泡排序(不去重)

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			var arr = [10,50,415,15,155,1532,5641,845,2,10,48,65];
			function fun(arr){
				for(var i = 0;i < arr.length-1;i++){
					for(var j =0;j < arr.length-i-1;j++){
						if(arr[j] > arr[j+1]){
							var arr_old = arr[j]
							arr[j] = arr[j+1];
							arr[j+1] = arr_old;
						}
					}	
				}
				return arr;
			}
			fun(arr);
			console.log(arr)
		</script>
		
	</body>
</html>