The _javascript technique of adding file effect based on JavaScript to implement single-Box Pull-down menu

This section describes the Radio box/dropdown menu/Add file, integrated css,html and JavaScript implementations, as follows:

Radio Box:

Implementation of the function is: (similar to the usual character test)
Hide part of the page first, then display it by clicking on the Radio box.
To give a comment by the choice of options-(each with a different integral)

Demo Code:

360 Browser 8.1 Demo results:

A page at the beginning:

The Radio box selects Yes:

Tips for not selecting fruit:

Tips for selecting fruit:

Drop down list:

Simple Demo Code:

360 Browser 8.1 Demo results:

The dropdown box is illustrated with text.

The following dropdown box directly uses color to indicate why the color of the set text

Enhanced Drop-down List-two-level link menu-code demo:

The function of the implementation is to determine the display of the second menu, depending on the option of the first menu.

360 Browser 8.1 Demo results:

File component – Add and remove attachments

Does not have the function which links with the backstage oh, just learns the HTML the technology

Demo Code:

360 Browser 8.1 Demo results:

To delete the second line of tr:

The above is a small set to introduce the JavaScript based on the implementation of the single box Drop-down menu to add file effect of the relevant knowledge, I hope to help you, if you want to learn more content please pay attention to cloud habitat community!