运用表单file输入框获取文件对象，请运行代码：

<form action="" method="get" onSubmit="return false;"> <input type="text" name="pTitle"> <input type="file" name="pFile" onChange="if(this.value)insertTitle(this.value);"> <input type="submit" value="submit"> </form> <script language="javascript"> function insertTitle(tValue){ var t1 = tValue.lastIndexOf("\\"); var t2 = tValue.lastIndexOf("."); if(t1 >= 0 && t1 < t2 && t1 < tValue.length){ document.getElementById("pTitle").value = tValue.substring(t1 + 1, t2); } } </script>