form.png
<form action="https://www.baidu.com/" method="post">
用戶名:<input type="text" name="username" id="" placeholder="請(qǐng)輸入用戶名">
密碼:<input type="password" name="password" id="" placeholder="請(qǐng)輸入密碼">
<input type="submit" value="登錄">
</form>