比如有一个编辑框 内容是
pz1-144576114..865454023130233.txt
pz1-1529459086..864674012305881.txt
pz1-1543886748..862688027201184.txt
pz1-1549647484..860623029422340.txt
pz1-1624888721..865919016840600.txt
pz1-1686449700..863261021660547.txt
pz1-1743724335..865803020925930.txt
pz1-1758113519..864837022452213.txt
取完后想让它为
144576114
1529459086
1543886748
1549647484
1624888721
1686449700
1743724335
1758113519
应该怎么写代码啊,麻烦详细点,坐等大神