(function($){  //插件  $.extend($,{    //命名空間    sortTable:{      sort:function(tableId,Idx){        var table = document.getElementById(tableId);        var tbody = table.tBodies[0];        var tr = tbody.rows;        var trValue = new Array();        for (var i=0; i<tr.length; i++ ) {          trValue[i] = tr[i]; //將表格中各行的信息存儲(chǔ)在新建的數(shù)組中        }        if (tbody.sortCol == Idx) {          trValue.reverse(); //如果該列已經(jīng)進(jìn)行排序過(guò)了，則直接對(duì)其反序排列        } else {          trValue.sort(function(tr1, tr2){            var value1 = tr1.cells[Idx].innerText; //列            var value2 = tr2.cells[Idx].innerText; //第二列            value1 = value1.replace("%",""); //把有%的取消掉            value1=value1.trim(); //去空格            console.log(typeof(value1));            if(isNaN(value1)){              var index1 = value1.indexOf("分");              var index2 = value2.indexOf("分");              if(index1>0){                var num1 =value1.substring(0,index1);                var num2 =value1.substring(index1+1,value1.length-1);                var num3 =value2.substring(0,index2);                var num4 =value2.substring(index2+1,value2.length-1);                if(parseFloat(num1)>parseFloat(num3)){                  return 1;                }                if(parseFloat(num1)<parseFloat(num3)){                  return -1;                }                if(parseFloat(num1)==parseFloat(num3)){                  return parseFloat(num2)-parseFloat(num4)                }              }else{                var a = tr1.cells[Idx].textContent;                var b= tr2.cells[Idx].textContent;                return a.localeCompare(b);              }            }else{              return parseFloat(value1)-parseFloat(value2);            }          });        }        var fragment = document.createDocumentFragment(); //新建一個(gè)代碼片段，用于保存排序后的結(jié)果        //var index = 0;        var arrtotal =new Array();        for (var i=0; i<trValue.length; i++ ) {          var c = trValue[i].cells[0].innerHTML;          //console.log(c);          if(c.trim().indexOf("匯總")!=-1){//匯總行總是排在表格最上面          // index = i;            arrtotal.push(i);            }else{          fragment.appendChild(trValue[i]);         }        }        if(arrtotal.length>0){          for(var k=arrtotal.length; k<0; k-- ){             tbody.appendChild(trValue[arrtotal[k]]);          }        }        //tbody.appendChild(trValue[index]);        tbody.appendChild(fragment); //將排序的結(jié)果替換掉之前的值        tbody.sortCol = Idx;      }    }  });})(jQuery);

function desc_change(id,str){   $("#desc_1").html("日期");   $("#desc_2").html("ID");   $("#desc_3").html("類別");   $("#"+id).html(str);}function desc(id,str){  var htmlstr =$("#"+id).text().trim();  var c =str;  if(htmlstr==str){    c=str+'↓';    $("#"+id).html(c);  }else if(htmlstr==str+'↓'){    c=str+'↑'    $("#"+id).html(c);  }else if(htmlstr==str+'↑'){    c=str+'↓'    $("#"+id).html(c);  }  desc_change(id,c)}

<table id="tableSort">    <thead>    <tr>        <th onclick="$.sortTable.sort('tableSort',0);desc('desc_1','日期')" ><a id="desc_1" >日期</a></th>        <th onclick="$.sortTable.sort('tableSort',1);desc('desc_2','軟件ID')" ><a id="desc_2" >ID</a></th>      <th onclick="$.sortTable.sort('tableSort',2);desc('desc_x','渠道ID')" ><a id="desc_3" >類別</a></th>    </tr>    </thead>    <tbody>     <tr>        <td>201870601</td>        <td>匯總</td>        <td>新聞</td>     </tr>    </tbody></table>