You can change the background color by clicking different options:
<Html>
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = gb2312"/>
<Title> untitled document </title>
</Head>
<Body id = b1>
<Select name = "kk" size = "5" onchange = "b1.bgColor = this. options [this. selectedIndex]. value">
<Option value = "red"> red
<Option value = "# ffccee"> # ffccee
<Option value = "blue"> blue
<Option value = "yellow"> yellow
<Option value = "white" selected> white
</Select>
</Body>
</Html>
The final display result is a long selection area. With Different colors selected, IE will display different backgrounds, which are quite understandable.
Onchange = "b1.bgColor = this. options [this. selectedIndex]. value"
Onchange is an event, which means to select different options to trigger events.
The b1.bgColor label ID is the background color bgColor of b1, which must be the same. It is case sensitive.
This indicates all the elements in the displayed tag.
Options indicates the set, which is the set of all options.
This. selectedIndex returns the selected items
The content of the value selection. Here is the selected color.
Size = "5" indicates that five options are displayed.
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