编程题： 数控车床加工如图所示零件，按要求完成零件的加工程序编制。一号刀为外圆车刀，二号刀为切槽刀，三号刀为螺纹刀。（不考虑刀尖圆弧半径补偿） 要求：

<p> 左端程序;&nbsp;<br> O0001&nbsp;<br> G99M03S600;&nbsp;<br> T0101;&nbsp;<br> G00X100.Z100.;&nbsp;<br> X84.Z2.;&nbsp;<br> G71U1.R0.5;&nbsp;<br> G71P1Q2U0.3W0.3F0.3;&nbsp;<br> N1G00X0.;&nbsp;<br> G01Z0.;&nbsp;<br> X45.97;&nbsp;<br> X49.97Z-2.;&nbsp;<br> Z-30.;&nbsp;<br> X58.;&nbsp;<br> G02X68.Z-35.R5.;&nbsp;<br> G01X74.;&nbsp;<br> X78.W-2.;&nbsp;<br> Z-63.;&nbsp;<br> N2X84.;&nbsp;<br> G70P1Q2S900F0.1;&nbsp;<br> G00X100.Z100.;&nbsp;<br> M05;&nbsp;<br> M03;&nbsp;<br> 左端程序:&nbsp;<br> O0002&nbsp;<br> G99M03S600;&nbsp;<br> T0101;&nbsp;<br> G00X100.Z100.;&nbsp;<br> X84.Z2.;&nbsp;<br> G71U1.R0.5;&nbsp;<br> G71P1Q2U0.3W0.3F0.3;&nbsp;<br> N1G00X0.;&nbsp;<br> G01Z0.;&nbsp;<br> X40.85;&nbsp;<br> X44.85Z-2.;&nbsp;<br> Z-34.96;&nbsp;<br> X52.01;&nbsp;<br> Z-45.;&nbsp;<br> X74.;&nbsp;<br> X78.W-2.;&nbsp;<br> N2X84.;&nbsp;<br> G70P1Q2S900F0.1;&nbsp;<br> G00X100.Z100.;&nbsp;<br> T0202S400;&nbsp;<br> G00X53.Z-34.96;&nbsp;<br> G01X42.;&nbsp;<br> G04X2.;&nbsp;<br> X53.;&nbsp;<br> G00X100.Z100.;&nbsp;<br> T0303;&nbsp;<br> G00X48.Z2.;&nbsp;<br> G92X44.2Z-32.F1.5;&nbsp;<br> X43.6;&nbsp;<br> X43.1;&nbsp;<br> X43.05;&nbsp;<br> G00X100.Z100.;&nbsp;<br> T0100;&nbsp;<br> M05;&nbsp;<br> M03;</p>