答案1
\documentclass{article}
\usepackage{pst-plot}
\begin{document}
\begin{pspicture}(-3.5,-3.5)(3.5,3.5)
\psaxes[labels=none,ticks=none]{<->}(0,0)(-3,-3)(3,3)[$x$,-90][$y$,0]
\psline[linewidth=2pt](2;135)(0,0)(2,0)
\psarcn[linewidth=2pt]{->}{1.75}{0}{135}
\psparametricplot[arrows=->]{0}{495}{
t 1000 div 1 add t cos mul
t 1000 div 1 add t sin mul }
% \psparametricplot[arrows=->,algebraic]{0}{Pi 2.75 mul}{% algebraic version
% (t/15 +1)*cos(t) | (t/15 +1)*sin(t) }
\end{pspicture}
\end{document}