绘制柱面.
选项：

A:ParametricPlot3D[{Cos[u],Sin[u],v},{u,0,2Pi},{v,0,1},Axes→False];
B:ParametricPlot3D[{Cos[u],Sin[u],v},{v,0,1},{u,0,2Pi},Axes→False];
C:ParametricPlot3D[{Cos[u],Sin[u],v},Axes→False,{v,0,1},{u,0,2Pi}];
D:ParametricPlot3D[{Cos[u],Sin[u],v},Axes→False,{u,0,2Pi},{v,0,1}]