Phone battery While Loop example
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import time # This helps us slow down the loop so we can read it
battery_level = 20 # Starting at 20 for a quick demo
power_button_pressed = False
print("--- Phone Powered On ---")
while battery_level >= 0:
print(f"Battery at: {battery_level}%")
# 1. The 'Warning' logic (similar to your 'x == 4' example)
if battery_level == 10:
print("LOW BATTERY WARNING! Switching to Power Save Mode...")
battery_level -= 1
time.sleep(1)
continue # Skip the rest and go back to check the condition
# 2. The 'Manual Break' logic
if power_button_pressed:
print("Manual Shutdown initiated...")
break
# 3. The Natural End
if battery_level == 0:
print("Battery empty.")
break # Exit the loop because we can't run on 0
# Standard battery drain
battery_level -= 1
time.sleep(0.5) # Pauses for half a second to simulate time passing
else:
# This only runs if the loop ends without a 'break'
# Since we used 'break' for 0%, this line won't actually trigger here!
print("System Standby")
print("--- Screen Black: Phone is Off ---")
Python
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