Know the form

It can be summarized: the form, including ... , is included.

The interior can be divided into three categories: Input, SELECT, TEXTAREA

First. First, see the internal parameter parameter Name: The unique name used to indicate the form, which is convenient for a page to create multiple forms and is not confused, of course, to accept the confirmation relationship of the page. Parameter Action: Obviously, it means that all content in the current form will be sent to a page to process. Processing includes accepting information, database comparison, addition, modification, etc. Parameters Method: The form of submission of the form, including two methods: POST and GET. POST is transferring information content, GET is transmitting a URL value, and the specific usage will be introduced in the next section "Built-in Object Request".

II. Re-see the input object in the Form form indicates an input object in the Form form, which is also different from the TYPE type. The password input box, radio / check box, submission / reset button, etc. A description. 1, TYPE = text input type is text, this is the most used by our most use, such as login input user name, registration input phone number, email, home address, etc. Of course, this is also the default type of INPUT. Parameter Name: The text input box name is also represented. Parameter size: The length of the input box. Parameter MaxLength: The maximum number of input characters is allowed in the input box. Parameter Value: The default value in the input box. Special parameters Readonly: Indicates that only the box can only be displayed, and modifications cannot be added.

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