冒泡排序 - 简书

简单的数组冒泡排序
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>test14</title>
    <script>
        var arr = [20, 10, 50, 30, 40];
        for(var i = 0; i < arr.length; i++){
            for(var j = 0; j < arr.length; j++){
                if(arr[j] > arr[j+1]){//大于号，将从小到大，小于号，从大到小
                    var tem = arr[j];
                    arr[j] = arr[j+1];
                    arr[j+1] = tem;
                }
            }
        }
        console.log(arr);
    </script>
</head>
<body>
    
</body>
</html>