18.4.1 opentextfile方法.html

javascript即用即差核心对象手册

<form>
   选择文件<input type="file" name="sfile" onchange="readFile()">
   <div id="txt"></div>
</form>
<script>
  function readFile()
  {
      var ofso = new ActiveXObject("Scripting.FileSystemObject");
      try
	    {
	       var ofile=ofso.OpenTextFile(document.forms[0].sfile.value,1);
	       strtxt=ofile.ReadAll();
		 }
	  catch(err)
	    {
		  alert(err.description);
		}
	  document.all("txt").innerText=strtxt;
  }
</script>