<script type="text/javascript">
var mya = new Array(3);
mya[0] = "1";
mya[1] = "2";
mya[2] = "3";
document.write(mya.concat(4,5)+"<br>");
document.write(mya); </script>
var mynum=new Array("kobe") document.write(mynum.concat("is","24","号").join(" "));
数据类型匹配