file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\403653606\QQ\WinTemp\RichOle\R@U01LX@TD01KD@0E1@LF$K.jpg
file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\403653606\QQ\WinTemp\RichOle\R@U01LX@TD01KD@0E1@LF$K.jpg
测量中点时只是开头那小段的中点。。。。
测量中点与实际中点位置