完整的錯誤資訊：Uncaught DOMException: Failed to set the 'value' property on 'HTMLInputElement': This input element accepts a filename, which may only be programmatically set to the empty string.
這個錯誤的意思就是說，不能為<input type="file" />的标簽元素添加value屬性！
完整的錯誤資訊：Uncaught DOMException: Failed to set the 'value' property on 'HTMLInputElement': This input element accepts a filename, which may only be programmatically set to the empty string.
這個錯誤的意思就是說，不能為<input type="file" />的标簽元素添加value屬性！
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