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爲什麼「<button onclick="submit()"> Submit</button>
」不適用於驗證?
以及爲什麼「<input type="submit" value="submit">
」的作品?爲什麼「onclick ='submit()'」不驗證表單?
<form action="#" method="post">
<input type="text" name="val" required><br>
<button onclick="submit()">Submit</button>
<input type="submit" value="submit">
</form>
爲什麼複製提交按鈕? – Phil