1
<form name="Form1"></form>2
<form name="Form2"></form>3
<form></form>4
<p>表单数目:5
<script>6
document.write(document.forms.length);7
</script>8
</p>
<form name="Form1"></form><form name="Form2"></form><form></form><p>表单数目: <script> document.write(document.forms.length); </script></p>