file:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\610680625\QQ\WinTemp\RichOle\O{LZ7LAB845PK(Z9J0R9PM1.jpgfile:///C:\Documents and Settings\Administrator\Application Data\Tencent\Users\610680625\QQ\WinTemp\RichOle\4%D]ZZ4(XF6%JT]31N$6P9A.jpg请教各位老师一个问题~两条PL线的同一个端点的坐标一样但是两条线的端点不重合是怎么回事?