<script type="text/javascript">??? var mymessage=confirm("你喜歡JavaScript嗎?");??? if(mymessage==true)??? {?? document.write("很好,加油!");?? }??? else??? {? document.write("JS功能強大,要學習噢!");?? }</script>
程序中雙等號是什么意思?
oeasy795100
2017-02-26 21:23:38