版权声明: https://blog.csdn.net/caoyan0829/article/details/80112599
arr.sort(function(a,b){return a-b;});
var minLength = arr[0];
var maxN = ary[ary.length-1];
arr.sort(function(a,b){return a-b;});
var minLength = arr[0];
var maxN = ary[ary.length-1];