利用开发者工具 console 查看输出 

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title>计算均值</title></head>
<body>
 
<h1>计算均值</h1>
 
<script> 
	var prices = [ 19,20,70];
	var sum = 0;
	for(var i =1; i <prices.length; i++)
	{
		sum = sum +prices[i];

	}

	var avg = sum/prices.length; 
	 
	console.log(avg); 
	//+ "max:"; +Math.max(null,price) +"min:"+Math.min(null,price);
 
</script>
</body>
</html>

　　获取一系列数字的均值

posted @ 2023-10-17 07:26  物华天宝关耳  阅读(35)  评论(0)    收藏  举报