配列: [ 1.  2. nan  4.  5.]
nanmean: 3.0
nanmedian: 3.0
nanmin: 1.0
nanmax: 5.0
anynan: True
move_mean (window=2): [1.  1.5 2.  4.  4.5]
nanmean: NumPy=8.3ms  Bottleneck=0.3ms  speedup=27.6x