javascript 两个字符串比较函数

<！DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <html> <head> <title>Untitled</title> </head> <body> <script language = javascript> function diff（）{ var s = f.s1.value; var s1 = f.s2.value; document.write（"s: " + s + "<br>"）; document.write（"s1: " + s1 + "<br>"）; function sort（s, a）{ for（i=0; i<s.length;i++）{ a[i] = s.charAt（i）; } return a.sort（）; } list = sort（s, new Array（））; list1 = sort（s1, new Array（））; var m = 0; var n = 0; var l = new Array（）; for（i = 0; i < list.length; i++）{ } for（i = 0; i < list1.length; i++）{ } j = 0; while（m < list.length && n < list1.length）{ if （list[m] < list1[n]）{ l[j] = list[m]; if （m < list.length）{ m++; } i++; j++; continue; } if （list[m] > list1[n]）{ l[j] = list1[n]; if （n < list1.length）{ n++; } i++; j++; continue; } if （list[m] == list1[n]）{ if （m < list.length）{ m++; } if （n < list1.length）{ n++; } i++; continue; } } if （l.length == 0） alert（"两个字符串所包含的字符完全一样"）; else alert（"两个字符串有不同的字符,它们是: " + """ + l.join（", "） + """）; } </script> <form name = "f"> <input type = "text" name = "s1"> <input type = "text" name = "s2"> <input type = "button" name = "compare" value = "比较" onclick = "diff（）"> </form> </body> </html>
[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]