type properties
type = "text" is defined single-line text input box
type = "password" to define a password input box
type = "radio" is defined radio button
type = "checkbox" check box is defined
type = "file" is defined to upload files
type = "reset" button to reset the definition
type = "button" to define a common button
type = "image" is defined as a picture submit button, with the src attribute definition picture address
type = "hidden" defines a hidden form fields, used to store the value of
The value attribute defined in the form element
The name attribute defines the name of the form element, this name is the key for the submission of data