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JS如何获取input中被选取的字符?

javascript input

freedom - 1年前

• 
  star65225692 - 1年前

  IE下:

  <script>
  function setValue(obj){
      var rng = document.selection.createRange();   
      document.getElementById("txt1").value=rng.htmlText; 
  }
  </script>
  <input type="text" value="set" nselect="setValue(this);">
  <input type="text" id="txt1">

  FireFox下:

  function setValue(obj){
      var start = obj.selectionStart;
      var end = obj.selectionEnd;
      document.getElementById("txt1").value=obj.value.substring(start,ed);
  }