console 命令行工具 X clear

console

var idTmr;
function getExplorer() {
  var explorer = window.navigator.userAgent;
  //ie 
  if (explorer.indexOf("MSIE") >= 0) {
    return 'ie';
  }
  //firefox 
  else if (explorer.indexOf("Firefox") >= 0) {
    return 'Firefox';
  }
  //Chrome
  else if (explorer.indexOf("Chrome") >= 0) {
    return 'Chrome';
  }
  //Opera
  else if (explorer.indexOf("Opera") >= 0) {
    return 'Opera';
  }
  //Safari
  else if (explorer.indexOf("Safari") >= 0) {
    return 'Safari';
  }
}
function method1(tableid) { //整个表格拷贝到EXCEL中
  if (getExplorer() == 'ie') {
    var curTbl = document.getElementById(tableid);
    var oXL = new ActiveXObject("Excel.Application");

    //创建AX对象excel 
    var oWB = oXL.Workbooks.Add();
    //获取workbook对象 
    var xlsheet = oWB.Worksheets(1);
    //激活当前sheet 
    var sel = document.body.createTextRange();
    sel.moveToElementText(curTbl);
    //把表格中的内容移到TextRange中 
    sel.select();
    //全选TextRange中内容 
    sel.execCommand("Copy");
    //复制TextRange中内容  
    xlsheet.Paste();
    //粘贴到活动的EXCEL中       
    oXL.Visible = true;
    //设置excel可见属性
    try {
      var fname = oXL.Application.GetSaveAsFilename("Excel.xls", "Excel Spreadsheets (*.xls), *.xls");
    } catch(e) {
      print("Nested catch caught " + e);
    } finally {
      oWB.SaveAs(fname);

      oWB.Close(savechanges = false);
      //xls.visible = false;
      oXL.Quit();
      oXL = null;
      //结束excel进程，退出完成
      //window.setInterval("Cleanup();",1);
      idTmr = window.setInterval("Cleanup();", 1);

    }

  } else {
    tableToExcel('ta');
  }
}
function Cleanup() {
  window.clearInterval(idTmr);
  CollectGarbage();
}
var tableToExcel = (function() {
  var uri = 'data:application/vnd.ms-excel;base64,',
  template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>',
  base64 = function(s) {
    return window.btoa(unescape(encodeURIComponent(s)))
  },
  format = function(s, c) {
    return s.replace(/{(\w+)}/g, function(m, p) {
      return c[p];
    })
  }
  return function(table, name) {
    if (!table.nodeType) table = document.getElementById(table) var ctx = {
      worksheet: name || 'Worksheet',
      table: table.innerHTML
    }
    window.location.href = uri + base64(format(template, ctx))
  }
})();

<button onclick="javascript:method1('ta')">
  导出EXCEL
</button>
<table class="table table-striped hided" id="ta" style="display: table;">
  <thead>
    <tr>
      <th style="width: 100px">
        index
      </th>
      <th>
        device
      </th>
      <th style="width: 100px">
        delete
      </th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>
        1
      </td>
      <td>
        dsfsf
      </td>
      <td>
        <button class="btn btn-danger btn-small" onclick="delDevice('#addDevicesTable',this)">
          ×
        </button>
      </td>
    </tr>
    <tr>
      <td>
        2
      </td>
      <td>
        sdfsfd
      </td>
      <td>
        <button class="btn btn-danger btn-small" onclick="delDevice('#addDevicesTable',this)">
          ×
        </button>
      </td>
    </tr>
  </tbody>
</table>