导出excel

function exportFun(){
      var row=[0,8];//你不要的行的坐标
      var line=[0,8];//你不需要的列的坐标
      exportExcel(‘tab‘,‘导出‘,row,line);
    }
如果你不传入row,line，导出全部的数据
    function exportExcel(tableID,fileName,row,line) {
        var agent = navigator.userAgent.toLowerCase();
        var isIE = /(msie\s|trident.*rv:)([\w.]+)/.test(agent);

        if (isIE) {
            alert("暂不支持IE内核的浏览器");
        } else {
            var table = document.getElementById(tableID);
            var oTh = table.getElementsByTagName(‘th‘);
            var data = [];
            data[0] = [];
            for(var i = 0; i < oTh.length; i++) {        // 标题th强制导出
                if(line && inArray(i, line)) {
                    continue;
                }
                data[0].push(oTh[i].innerHTML)
            }
            var oTr = table.getElementsByTagName(‘tr‘);
            for(var i = 1; i < oTr.length; i++) {
                if(row && inArray(i,row)) {
                    continue;
                }
                var arr = [];
                var oTd = oTr[i].getElementsByTagName(‘td‘);
                for (var j = 0; j < oTd.length; j++) {
                    if(line && inArray(j, line)) {
                        continue;
                    }
                    arr.push(oTd[j].innerHTML.replace(‘\n‘,‘ ‘));
                }
                data.push(arr);
            }
            var str = ‘‘;
            data.forEach(function(arr, index){
                str += arr.toString() + ‘\n‘;
            })

            str =  encodeURIComponent(str);         //解决换行符无法识别问题
            var url = ‘data:text/txt;charset=utf-8,\ufeff‘+ str;
            var downloadLink = document.createElement("a");
            downloadLink.href = url;
            downloadLink.download = fileName+".xlsx";
            document.body.appendChild(downloadLink);
            downloadLink.click();
            downloadLink.remove();
        }
    }
    function inArray(target, arr) {   // 不适用于引用数据类型
      return arr.some(function(elem, index) {
        if (target === elem) {
          return true;
        }
      })
    }