在线运行代码 - 菜鸟教程

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<title>菜鸟教程(cainiaoplay.com)</title>
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<p>注意write()方法不会在每个语句后面新增一行：</p>
<pre>
<script>
document.write("Hello World!");
document.write("Have a nice day!");
</script>
</pre>
<p>注意writeln()方法在每个语句后面新增一行：</p>
<pre>
<script>
document.writeln("Hello World!");
document.writeln("Have a nice day!");
</script>
</pre>

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源代码

动行结果