%#@#%304Cp^2=1+p^2|cos0|sin0p^2=11-|cos0|sin0|cos0|sin012|sin20|12p^2222p2x=pcos02y=psin261Cp1^2=1+p1^2cos01sin01Cp4^2=1+p4^2cos04sin044=1S2*（12*1^2=33C12sp