sort.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

    <input type="file" class="fgb">


<!-- <div class="fgb"></div>-->
</body>
</html>
<script>

    var fgb=document.getElementsByClassName('fgb')[0];
    fgb.onchange=function (e) {
        console.log(e.target.value,'e,target.value');
        console.log(1);
        console.log(e.target.files[0]);
    };


    var ary=[5,1,6];
     console.log(ary);
     fnTorting(ary);
     console.log(ary);

     function fnTorting(arr, pa) { //冒泡排序函数;
        for (var j = arr.length; j > 0; j--) {
            if (arr[j] < arr[j - 1]) {
                pa = arr[j];
                arr[j] = arr[j - 1];
                arr[j - 1] = pa;
            }
        }
    }
    
    big = function (vbig) {
        this.a=vbig.a;
        this.b=vbig.b;
        this.c=vbig.c;
    };

     big.prototype.d=function (e) {
         console.log(e);
     };


     function child () {
         console.log(this.a);
     }

     console.log(child.call(big, {a: 1, b: 2, c: 3}));
     console.log('---------------------------');
     console.log(child,'child');
     console.log('---------------------------');

    var sm = new big({a:1,b:2,c:3});
    console.log(sm);

</script>