5、hOptimizationstrategyspeedPlace&RoutePlaceandrouteeffortlevelhigh Altera TypeOptionValueSynthesisOptionstratixii_optimization_techniqueSpeedFitOptionFitter_EffortStandard(Highest)optimize_fast_corner_timingonphysical_synthesis_combo_logicon 编译结果作者采用了两种形式的滤