Javascript 排序方法

出自：http://hi.baidu.com/jinzesudawei/item/ae63550d6324486dd55a11c8

 

 

Javascript

<script type="text/javascript">
        function sort() {
            var list = new Array();
            var str = document.getElementById("mess").value;
            var strlist = str.split(",");
            for (var i = 0; i < strlist.length; i++) {
                list.push(strlist[i]);
            }
            alert('输入的内容：' + list);

            // 倒序
            var n = list.length;
            for (var i = 0; i < n / 2; i++) {
                var tem = list[i];
                var j = n - 1 - i;
                list[i] = list[j];
                list[j] = tem;
            }
            alert('倒序结果：' + list);
           
            // 冒泡排序，同字母排序
            var temp = 0;
            for (var i = 0; i < list.length - 1; i++) {
                for (var j = i + 1; j < list.length; j++) {
                    if (list[i] > list[j]) {
                        temp = list[i];
                        list[i] = list[j];
                        list[j] = temp;
                    }
                }
            }
            alert('冒泡排序：' + list);

            // 字母排序：sort() 正序，reverse() 反序
            alert('字母排序：' + list.sort());

            // 按值排序：return a - b 正序，return b - a 反序
            function compare(a, b) {
                return a - b
            }
            alert('按值排序：' + list.sort(compare));
        }
</script>

html

输入数据：<input id="mess" type="text" /><input type="button" value="排序" onclick="sort()" />

 

 

 

 

 

 

 

 

 

 

 

参考资料

JavaScript sort() 方法
http://www.w3school.com.cn/js/jsref_sort.asp

JavaScript reverse() 方法
http://www.w3school.com.cn/js/jsref_reverse.asp