延时

sunlichao

1. import time
   
2. time.sleep(1)           # sleep for 1 second
   
3. time.sleep_ms(500)      # sleep for 500 milliseconds
   
4. time.sleep_us(10)       # sleep for 10 microseconds
   
5. start = time.ticks_ms() # get millisecond counter
   
6. delta = time.ticks_diff(start, time.ticks_ms()) # compute time difference

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