题解 | #从大到小排序#

for(var j=0;j<array.length-1;j++){
    for(var i=0;i<array.length-1-j;i++){
        if(array[array.length-(i+1)]>array[array.length-(i+2)]){
            //if 最后一位 > 倒数第二位
            //数据交换
            var a=array[array.length-(i+1)]
            array[array.length-(i+1)]=array[array.length-(i+2)]
            array[array.length-(i+2)]=a
        }
    }
    return array
}