document.write(mya.concat(4,5)+"<br>") 里面的数字换成字母为啥就不行了？？
<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>
qq_含蓄小男生_03743553
2016-08-18
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