如何设置文本方向将以HTML提交？
使用dirname属性可让您提交文本方向。该值将是输入名称，后跟 “.dir”。
示例
<!DOCTYPE html>
<html>
<body>
<h2>Student Contact Form</h2>
<form action = "mailto:emailid@example.com" method = "post" enctype = "text/plain">
Student Name:<br><input type = "text" name = "sname" dirname = "sname.dir"> <br>
Student Subject:<br><input type = "text" name = "ssubject"><br>
<input type = "submit" value = "Send">
</form>
</body>
</html>