<textarea id="list" class="toolarea">找一找教程网
www.zyiz.net
www.baidu.com
www.zyiz.net
找一找教程网
shouce.zyiz.net
www.zyiz.net
tools.zyiz.net
www.baidu.com
shouce.zyiz.net
tools.zyiz.net
找一找教程网
www.zyiz.net</textarea>
<input type="button" onclick="process()" value="去重处理" class="bt-green">

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function process(){
 list = document.getElementById('list');
 arr = list.value.split('\n');
 arr = unique(arr);
 list.value = "";
 for(key in arr){
	 list.value += arr[key] + '\n';
 }
 alert("处理完成！");
}
</script>

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