Two characteristic properties of the input box

Use two new properties disabled and ReadOnly: (1) The Disabled property can mask an action, such as prohibiting the user from selecting, clicking the button or using the TAB key to switch between the different text. To use the Disabled property in the form label: <input type= "button" Name= "Donebutton" value= "OK" disabled> That's what it looks like: <input type= "text" name= "username" value= "eschool" disabled> That's what it looks like: When your site has some functional features not yet completed or temporarily shut down, it is not very good to deal with it? Note: The value of the area after using the disabled attribute cannot be passed to another program (ASP/CGI), and if you have to pass it, do it by hiding the attribute. That <input type= "hidden" name= "username" value= "eschool" > (2) The ReadOnly attribute is "read Only" as the name suggests. It converts text to an object and prevents it from being edited. <input type= "text" name= "Eschool" value= "1500" readonly> can modify Cannot modify The second area uses the ReadOnly property, although you can switch between multiple text areas by using the TAB key, but you cannot modify the value of the text area that you have specified. But it's not like the disabled property, it can be a normal numeric pass.