修改背光 - pwm3

hc

2024-08-15 77e89012189e2b1c68eace320794579f45b94136

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# Taken from smmap/test/test_tutorial.py
 
import smmap
mman = smmap.SlidingWindowMapManager()
assert mman.num_file_handles() == 0
assert mman.mapped_memory_size() == 0