取数组中的中位数.html

<script>
	var arr = [1,7,3,4,66,55];

	// arr.sort(function(a,b){
	// 	return a-b;
	// });
	// console.log(arr);

	var start = Math.floor(arr.length / 2);
	var end = Math.ceil(arr.length / 2);
	if(start == end){
		console.log(arr[start-1]+'----'+arr[start]);
	}else{
		console.log(arr[start]);
	}

	// var num = (start + end) / 2;
	// console.log(arr[num-1]);

</script>