<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>數組-去重</title>
<style>#div1{width:375px;height:525px;background:#ccc;margin:0;}
#div1 .prompt{text-align: center;}
#div1 .text1{width:305px;height:205px;margin-left:30px;margin-top:10px;}
#div1 .btn1{width:100px;margin-left:135px;margin-top:10px;}</style>
<script>function(){
var oDiv1=document.getElementById('div1');
var oT1 = document.getElementById('txt1');
var oT2=document.getElementById('txt2');
var oBtn=document.getElementById('btn1');
oBtn.onclick=function(){
var str = oT1.value;
var arr = str.split(' ');
var arr2=[];
for (var i = 0; i < arr.length; i++) {
var find=false;
for (var j = 0; j < arr2.length; j++) {
if (arr2[j]==arr[i]) {
find=true;
}
}
if (!find) {
arr2.push(arr[i]);
}
}
var arr3=arr2.join('\n');
oBtn.onclick=function(){</script>
</head>
<body>
<div id="div1">
<div class="prompt">輸入原始文本（空格隔開）：</div>
<textarea id="txt1" class="text1"></textarea>
<input id="btn1" class="btn1" type="button" value="變">
<div class="prompt">這裡輸出結果</div>
<textarea id="txt2" class="text1"></textarea>
</div>
</body>
</html> 例如在原始文本框輸入：跑步鞋 休閑鞋 闆鞋 帆布鞋 籃球鞋 拖鞋 訓練鞋 乒羽網鞋 足球鞋 專項運動鞋 跑步鞋 休閑鞋 闆鞋 籃球鞋 拖鞋 訓練鞋
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