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<html>
<head>
</head>
<body>
<input type="text" name="aaa" value="A">
<input type="text" name="aaa" value="B">
</body>
<script language="JavaScript">
var arr = document.getElementsByName('aaa');
var arr1 = [];
for(var i=0,len=arr.length;i<len;i++){
arr1.push(arr[i].value)
}
alert(arr1.join("-"))
</script>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<input name="1" type="button" id="btn" value="click" />
<input name="1" type="button" id="btn" value="click" />
<input name="1" type="button" id="btn" value="click" />
<input name="1" type="button" id="btn" value="click" />
<script>
var inps = document.getElementsByName('1'),
len = inps.length,str = '';
for(var i = 0; i < len; i++){
if(i < len - 1){str +=inps[i] + '-';}
else{str += inps[i]}
}
alert(str)
</script>
</body>
</html>