post26后处理问题

[img]file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\843379483\QQ\WinTemp\RichOle\X7R6E~`RPWO0}G) V9QIE1@M.jpg[/img][img]file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\843379483\QQ\WinTemp\RichOle\X7R6E~`RPWO0}G) V9QIE1@M.jpg[/img]问一下，我用post26绘制应力应变曲线时，怎么老出现这个警告啊，求高手帮忙111