In drupal, how we generate <form> tage with fapi

am using drupal, I made a form wiht drupal fapi

moduele_menu()
module_myform(开发者_如何学Go)
module_myform_submit

..

I get in my page the form elements ( inputs...) but i did not get the wrapper ( <FORM action=... </FORM>!!!!

Can someone help please

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You need to use drupal_get_form('form_id') to let drupal know about the form. That is what is creating the form HTML element and other elements needed by Drupal.