如何在Flask中不定义新路由的情况下获取单选按钮值？

<form id="myForm">
  <label for="option1">Option 1</label>
  <input type="radio" id="option1" name="myOption" value="option1">
  
  <label for="option2">Option 2</label>
  <input type="radio" id="option2" name="myOption" value="option2">
  
  <label for="option3">Option 3</label>
  <input type="radio" id="option3" name="myOption" value="option3">
  
  <button type="button" onclick="getValue()">Submit</button>
</form>

function getValue() {
  var selectedOption = $("input[name='myOption']:checked").val();
  
  // 发送选中的值到后端
  $.ajax({
    url: "/process_option",
    type: "POST",
    data: { option: selectedOption },
    success: function(response) {
      // 处理后端返回的响应
    }
  });
}

from flask import Flask, request

app = Flask(__name__)

@app.route("/process_option", methods=["POST"])
def process_option():
    selected_option = request.form.get("option")
    
    # 处理选项值
    
    return "Option processed successfully!"

if __name__ == "__main__":
    app.run()