HTML form包孕的元素
日期：2014-05-17 浏览次数：20693 次
HTML form包含的元素
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HTML form elements
| Object | HTML tag | type property | Description and events |
| Button | <input type="button"> or <button type="button"> | "button" | A push button; onclick |
| Checkbox | <input type="checkbox"> | "checkbox" | A toggle button without radio-button behavior; onclick |
| FileUpload | <input type="file"> | "file" | An input filed for entering the name of a file to upload to the web server; onchange |
| Hidden | <input type="hidden"> | "hidden" | Data submitted with the form but not visible to the user; no event handlers |
| Option | <option> | none | A single item within a Select object; event handlers are no the select object, not on individual Option objects |
| Password | <input type="password"> | "password" | An input filed for password entry--typed characters are not visible; onchange |
| Radio | <input type="radio"> | "radio" | A toggle button with radio-button behavior--only on selected at a time; onclick |
| Reset | <input type="reset"> or <button type="reset"> | "reset" | A push button that resets a form; onclick |
| Select | <select> | "select-one" | A list or drop-down menu from which one item may be selected; onchange |
| Select | <select multiple> | "select-multiple" | A list from which multiple items may be selected; onchange |
| Submit | <input type="submit"> or <button type="submit"> | "submit" |
A push button that submits a form; onclick |
| Text | <input type="text"> | "text" | A single-line text entry field; onchange |
| Textarea | <textarea> | "textarea" | A multiline text entry filed; onchange |
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An HTML form containing all form elements
<form name="everything"> <!-- A one-of-everything HTML form... -->
<table border="border" cellpadding="5"> <!-- in a big HTML table -->
<tr>
<td>Username:<br>[1]<input type="text" name="username" size="15"></td>
<td>Password:<br>[2]<input type="password" name="password" size="15"></td>
<td rowspan="4">Input Events[3]<br>
<textarea name="textarea" rows="20" cols="28"></textarea></td>
<td rowspan="4" align="center" valign="center">
[9]<input type="button" value="Clear" name="clearbutton"><br>
[10]<input type="submit" name="submitbutton" value="Submit"><br>
[11]<input type="reset" name="resetbutton" value="Reset"></td></tr>
<tr>
<td colspan="2">
Filename: [4]<input type="file" name="file" size="15"></td></tr>
<tr>
<td>My Computer Peripherals:<br>
[5]<input type="checkbox" name="peripherals" value="modem">56K Modem<br>
[5]<input type="checkbox" name="peripherals" value="printer">Printer<br>
[5]<input type="checkbox" name="peripherals" value="tape">Tape Backup</td>
<td>My Web Browser:<br>
[6]<input type="radio" name="browser" value="nn">Netscape<br>
[6]<input type="radio" name="browser" value="ie">Internet Explorer<br&
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