源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>开源教程(ossoft.cn)</title> </head> <body> <form name="Form1"></form> <form name="Form2"></form> <form></form> <p>表单数目: <script> document.write(document.forms.length); </script></p> </body> </html>
运行结果