一、select 和onChange事件

  1. <body>
  2.     <select id="select">
  3.         <option value="None" selected>None</option>
  4.         <option value="硚口区">硚口区</option>
  5.         <option value="汉阳区">汉阳区</option>
  6.         <option value="洪山区">洪山区</option>
  7.     </select>
  8.     <script>
  9.         let select = document.getElementById("select");
  10.         select.onchange = function(e){
  11.             console.log(e.target.value)
  12.         }
  13.     </script>
  14. </body>