http://www.17sucai.com/pins/demoshow/154<div class="bulutishi" >
                <label class="bulutitle">选择补录内容:</label>
              </div>
             <div class="bulukuang">
                 <input type="file" id="file" name="file" style="display:none"/>
                 <input class="buluxianshi" type="text" id="filename"/>
                 <input class="bulubutton" type="button" name="button" value="浏览" onclick="openBrowse()" />
                 <input class="upload" name="submit" type="submit" value="确认上传"/>
                 </div>  
<script>
  var fn=document.getElementById("filename");
  function openBrowse(obj){
document.getElementById("file").click();
  }
  document.getElementById("file").onchange=function(){fn.value=this.value;}
</script>