eadminecmseditorinfoeditoreditordialog/fck_link.html
查找
input id="txtTargetFrame" style="width:100%" type="text" onkeyup="OnTargetNameChange();" onchange="OnTargetNameChange();"
改为
input id="txtTargetFrame" style="width:100%" type="text" onkeyup="OnTargetNameChange();" onchange="OnTargetNameChange();" value="_blank"