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Input FileUpload disabled 属性
tryjsref_fileupload_disabled3
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<!DOCTYPE html> <html> <body> Get Image: <input type="file" id="myFile"> <br> <button onclick="disableBtn()">Disable File Upload</button> <button onclick="undisableBtn()">Undisable File Upload</button> <script> function disableBtn() { document.getElementById("myFile").disabled = true; } function undisableBtn() { document.getElementById("myFile").disabled = false; } </script> </body> </html>