javascript 两个字符串比较函数

时间:2020-05-12 人气:0

<!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]

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