如何从HTML文本框中获取输入的值并将其发送到特定的邮件ID？

<input type="text" id="emailInput">
<button onclick="sendEmail()">发送邮件</button>

function sendEmail() {
  // 获取文本框中的值
  var email = document.getElementById("emailInput").value;

  // 创建邮件内容
  var subject = "邮件主题";
  var body = "邮件内容";

  // 发送邮件
  var mailtoLink = "mailto:" + email + "?subject=" + encodeURIComponent(subject) + "&body=" + encodeURIComponent(body);
  window.location.href = mailtoLink;
}