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The select tag in HTML can create a public selection box in the items on the form. This article will give you a detailed introduction to the usage of the select tag.
Let’s first take a look at what is the select tag?
The select tag is the tag used to create a selection box. Use the select tag when you want the user to select from a drop-down menu item.
You can use the select tag as part of a form, or you can use JavaScript to get the value of the selected item.
How to use the select tag?
To use select tags, you can create a drop-down menu by adding option tags between the select tags.
<select name="name" id="name"> <option value="name1">张三</option> <option value="name2">李四</option> <option value="name3">王二</option> </select>
Complex usage of select tags
Code example:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <label>php中文网视频课程选择: <select name="program" multiple size="4"> <optgroup label="application"> <option value="wordpress">前端视频课程</option> <option value="webapp">php视频教程</option> <option value="laravel">bootstrap视频课程</option> </optgroup> <optgroup label="mobile"> <option value="iphone">iPhone</option> <option value="android">Android</option> <option value="unity">Unity</option> </optgroup> </select> </label> </body> </html>
Instructions:
If you specify multiple attributes, you can use multiple options. If not specified, only one selection is made.
Since the size attribute is specified as size="4", only 4 lines can be displayed.
You can also scroll to show all options.
The label specified by
Let’s take a look at an example finally:
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> </head> <body> <form action="#" method="GET"> <select name="name" id="name"> <option value="who">发消息给谁?</option> <option value="name1">张三</option> <option value="name2">李四</option> <option value="name3">王二</option> <option value="name4">陈五</option> <option value="name5">赵六</option> </select> <input type="submit" name="submit" value="发送" /> </form> </body> </html>
The effect on the browser is as follows:
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