兼容ie，chrome，firefox的导出excel

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript" language="javascript">
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></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))
              }
            })()
    </script>

</head>
<body>
<table id="ta">
<tr>
    <td>1</td><td>admin</td>
    <td>23</td><td>程序员</td>
    <td>天津</td><td>[email protected]</td>
</tr>
<tr>
    <td>2</td><td>guest</td>
    <td>23</td><td>测试员</td>
    <td>北京</td><td>[email protected]</td>
</tr>
</table>
<input id="Button1" type="button" value="导出EXCEL"
        onclick="javascript:method1('ta')" />
</body>
</html>

兼容ie，chrome，firefox的导出excel

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