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Button formEnctype 属性
tryjsref_pushbutton_formenctype2
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<!DOCTYPE html> <html> <body> <p>This example contains a form with a submit button that submits the form without character encoding (text/plain):</p> <form action="/action_page2.php" method="post"> Name: <input type="text" name="fname" value="St?le Refsnes"><br> <button id="myBtn" type="submit" formenctype="text/plain">Submit form</button> </form> <p>Click on the "Try it" button to change the value of the formenctype attribute of the submit button above.</p> <p><b>Note:</b> Click on the submit button before and after you have clicked on the "Try it" button.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { document.getElementById("myBtn").formEnctype = "application/x-www-form-urlencoded"; document.getElementById("demo").innerHTML = "The value of the formenctype attribute was changed from 'text/plain' to 'application/x-www-form-urlencoded'."; } </script> </body> </html>