求教批處理整理文本內容按IP的C段排列文本內容如下：125.120.138.221125.120.138.222125.120.147.162125.120.147.163125.120.147.164125.120.147.165125.120.147.166125.120.146.167125.120.146.168125.120.146.169125.120.146.170125.120.146.171125.120.146.17260.118.192.13060.118.192.13160.118.192.13260.118.192.13360.118.192.13460.118.192.13560.118.192.13660.118.192.137111.187.153.16111.187.153.17111.187.153.18111.187.153.19111.187.153.1.187.153.21111.187.153.22111.187.153.23想用批處理排序，每個ip的C段，取1個來排序，所有的ip的C網都取一個來排列，例如像得到結果如下125.120.138.221125.120.147.162125.120.146.16760.118.192.130111.187.153.16125.120.138.22225.120.147.163125.120.146.16860.118.192.131111.187.153.17應該怎么寫這個批處理，求教