JQuery's method of getting and setting form elements

JQuery provides the val () method, which allows you to quickly obtain and set the text box, single-choice button, and single-choice button values of the form.
Use val () without parameters to obtain the element value.
If val () is used to specify a parameter, the value is assigned to the element.

As follows:
Copy codeThe Code is as follows:
// Obtain the value
Alert ($ ("input # mytextbox"). val ());
Alert ($ ("select # mylist"). val ());
Alert ($ ("input # myradio"). val ());

// Set the value
$ ("Input # mytextbox"). val ("61dh ");
$ ("Select # mylist"). val ("first column ");
$ ("Input # myradio"). val (2 );