如果使用以下代码，如何绘制封闭路径：

Question

PSTricks 用户指南第 34 页中的示例。

\begin{pspicture}[showgrid=true](-1,-1)(4,4)
\pscustom[linewidth=2pt,fillstyle=solid,fillcolor=gray]
{
\pscurve(0,2)(1,2.5)(2,1.5)(4,3)
\pscurve(4,1)(3,0.5)(2,1)(1,0)(0,.5)
}
\end{pspicture}

Answer 1

\pscustom[linewidth=2pt,fillstyle=solid,fillcolor=gray]{%
    \pscurve(0,2)(1,2.5)(2,1.5)(4,3)
    \pscurve(4,1)(3,0.5)(2,1)(1,0)(0,.5)
    \closepath
}