为什么添加换行<br />后,左边界面什么都没显示出来?
<script type="text/javascript">
var num1=10;
var num2="JS"
document.write("num1的值是:"+num1);<br />
document.write("num2的值是:"+num2);
</script>
<script type="text/javascript">
var num1=10;
var num2="JS"
document.write("num1的值是:"+num1);<br />
document.write("num2的值是:"+num2);
</script>
2016-06-30
举报