Introduction to the functions and usage of value and name attributes in Html
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1. The value used in the button refers to the text to be displayed on the button, such as "OK", "Delete", etc. 2. The value used for the checkbox refers to the value of the checkbox 3. The value used for radio buttons is the same as that for check boxes 4. The value used in the drop-down menu is the value of each item in the list 5. The value used for the hidden field is the content displayed in the box In the background, if you want to get the content of the checkbox, it is value. When you get data on the page that receives form data, you get the value of value. 1. name is the name of the control (multiple controls can have the same name), and value is the value of the control; 2. Not all controls’ values are displayed, such as checkbox, radio, hidden. 3. Define the name and value of the control to get the control and its value on the server; 4. If you don't see the name of submit, it doesn't mean that the browser ignores its name. Before submission, the browser also defines a name, and its name and value can still be obtained on the server; 5. A control can be displayed without defining a name/value. Its name/value is defined only to facilitate reception and distinction on the server. Of course, the value of a button is not only used to store its value, but also for display. [code] <html> <select> <option value="1">Flowers</option> <option value="2" selected="selected">Gardens</option> <option value="3">Trees</option> </select> <form> <input type="checkbox" name="newsletter" checked="checked" value="Daily" />vjn <input type="checkbox" name="newsletter" value="Weekly" />bvc <input type="checkbox" name="newsletter" checked="checked" value="Monthly" />cvb </form> <input type="button" value="OK"/> <SPAN style="WHITE-SPACE: pre"> <input type="text" value="Please enter content"/> </SPAN> </html>  |
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