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請(qǐng)問為什么不顯示呢，是哪里出錯(cuò)了？

<!DOCTYPE?HTML>
<html>
<head>
????<meta?http-equiv="Content-Type"?content="text/html;?charset=gb18030">
????<title>Untitled?Document</title>
????
</head>
<body>
????<script?type="text/javascript">???
????????/*
?????????*?param1?Array?
?????????*?param2?Array
?????????*?return?true?or?false
?????????*/
???????
????????function?arraysSimilar(arr1,?arr2){
????????var?temp=false;
????????var?t1=[];
????????var?t2=[];
????????if(arr1.length===arr2.length&&arr1?instanceof?Array?&&?arr2?instanceof?Array)
????????????for(var?i=0;i<arr1.length;i++){
????????????????t1[i]=getType(arr1[i]);
????????????????t2[i]=getType(arr2[i]);
????????????}
????????????if?(t1.sort().toString()===t2.sort().toString())
????????????????temp=true;
????????return?temp;
????????}
????????
????????function?getType(arr){
???????????return?Object.prototype.toString.apply(arr);
????????}
????</script>
????<script?src="testData.js"></script>
</body>
</html>