我想做一个小功能,可以用jQuery(或PHP / Ajax)置换表的2个单元格。
假设我有下表:

<table class="table">
    <tr>
        <td class="btn" data-cellN="1">
            01
        </td>
        <td class="btn" data-cellN="2">
            02
        </td>
    </tr>

    <tr>
        <td class="btn" data-cellN="3">
            05
        </td>
        <td class="btn" data-cellN="4">
            06
        </td>
    </tr>
</table>


如何选择2个细胞并进行置换?

编辑:

尽管如此,由于您的建议,我还是通过了该功能。我第一次遇到来自c1 c2 c3变量的怪异错误,这是可行的,我不知道为什么,
有人可以帮我完成我的功能吗?

这是我的Javascript :(包装在文档中)

        var nbbuttonclicked=0; // to trigger the movecell function after the second button was clicked
        var count=0; //Number of tinme we moved a cell

        var table = {

            c1:null,
            c2:null,
            c3:null,

            check: function(){
                $('td').on('click', function(){ //When the user click on a button we verify if he already clicked on this button

                    if( $(this).hasClass('btn-info') ) {

                        //If yes, then remove the class and variable c1
                        $(this).removeClass('btn-info');
                        table.c1=0;
                        nbbuttonclicked--;

                    }else{
                        //if no, then add a class to show him it is clicked and remember the value of the cell
                        $(this).addClass('btn-info');
                        if( typeof table.c1 === 'undefined' || table.c1===null) {
                            table.c1 = $(this);
                          console.log('c1:'+table.c1.html());
                        }else{
                            table.c2 = $(this);
                          console.log('c2:'+table.c2.html());
                        }

                        nbbuttonclicked++;

                        if( nbbuttonclicked==2 ) {
                            table.movecell(table.c1,table.c2); // we trigger the function to permute the values
                        }
                    }
                });
            },

            movecell: function(c1, c2){
                //We reset that variable for the next move
                nbbuttonclicked=0;

              //we move the cells
              table.c3=c1.html();
              c1.html(c2.html());
              c2.html(table.c3)

              c1.removeClass('btn-info');
              c2.removeClass('btn-info');
              table.c1=table.c2=table.c3=c1=c2=null;

            },

            // movecell: function(c1, c2){
                // We check if the cells.html() are = to data-cellN. If yes, you won
                // foreach()
            // },

            // var row = $('table tr:nth-child(1)')[0];
            // moveCell(row, 0, 3);
        };
        table.check();


这是一个示例:
http://jsbin.com/exesof/2/edit

最佳答案

试试这个代码:

var cell0,
    cell1,
    next,
    row0,
    row1;

$('td').on('click', function() {
  if(!cell0) {
    cell0 = this;
    row0 = cell0.parentNode;
    return;
  } else if(!cell1) {
    cell1 = this;
    row1 = cell1.parentNode;

    // === Switch cells ===
    next = cell0.nextSibling;
    row1.insertBefore(cell0, cell1);
    row0.insertBefore(cell1, next);
    // ====================

    row0 = row1 = cell0 = cell1 = next = null;
  }
});


您可以在这里尝试工作示例:http://jsbin.com/irapeb/3/edit

单击一个单元格,然后单击另一个单元格,然后查看它们是否已切换:)

10-07 23:51