lovecoding
/
W250913


			
				
					
						
						
							1234567891011121314151617181920212223242526272829303132
							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        var arr = [];
        var sum = 0;
        var avg = 0;
        for(var i=1;i<8;i++){
            var num = window.prompt("请输入第"+i+"门成绩");
            num *= 1;
            arr.push(num);
        }

        var arr2 = arr.filter(function(item){
            sum += item;
            return item<60;
        });

        console.log("总成绩:"+sum);
        console.log("平均分:"+(sum/7));
        console.log("低于60分成绩:"+arr2);
        
        

    </script>
</body>
</html>