table 列合并

<script>
    //参数为需要合并的列
    merge (icol) {
      // console.log(icol)
      var tdTxt = ''
      var list_map = new Array()
      var uuid = ''
      var icolIndex = icol - 1
      var that = this
      $('#table').find('tbody tr').each(function () {
        var txt = $(this).find('td:eq(' + icolIndex + ')').text().trim()
        if (tdTxt != txt) {
          // console.log(txt);
          uuid = that.uuidStr()
          list_map.push(uuid)
          tdTxt = txt
        }
        $(this).find('td:eq(' + icolIndex + ')').attr('tduuid', uuid)
      })
      for (var i = 0; i < list_map.length; i++) {
        var tduuid = list_map[i]
        $('#table').find("td[tduuid='" + tduuid + "']").each(function (index, el) {
          var tdlg = $('#table').find("td[tduuid='" + tduuid + "']").length
          var obj = $(el).parent('tr')
          if (index == 0) {
            $(el).attr('rowspan', tdlg)
          } else {
            $(el).remove()
          }
        })
      }
      return true
    },
    uuidStr () {
      var s = []
      var hexDigits = '0123456789abcdef'
      for (var i = 0; i < 36; i++) {
        s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1)
      }
      s[14] = '4' // bits 12-15 of the time_hi_and_version field to 0010
      s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1) // bits 6-7 of the clock_seq_hi_and_reserved to 01
      s[8] = s[13] = s[18] = s[23] = '-'
      var uuid = s.join('')
      return uuid
    },

</script>

需要合并多列时，需要先合并靠后的列，然后在合并靠前的列。（先合并靠前的列容易引起列错位）