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44 lines
937 B
44 lines
937 B
2 years ago
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import threading
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import time
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import random
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gesamtwert = 0
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message = ''
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lock = threading.Lock()
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def calculate_sum(thread_nummer,lock):
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global gesamtwert
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global message
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for i in range(100 + thread_nummer):
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with lock:
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zwischen = gesamtwert
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#Zufällige Wartezeit zwischen 0,1s und 0,5s
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wartezeit = random.randint(1,5+thread_nummer)
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time.sleep(0.1 * wartezeit)
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zwischen += 1
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with lock:
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gesamtwert = zwischen
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message = f'Thread {thread_nummer} fertig'
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print(f'Thread + {thread_nummer} abgearbeitet.')
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# zwei Threads starten, um die Summe der Zahlen zu berechnen
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gesamtwert = 0
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t1 = threading.Thread(target=calculate_sum, args=(1,lock,))
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t2 = threading.Thread(target=calculate_sum, args=(2,lock,))
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t3 = threading.Thread(target=calculate_sum, args=(3,lock,))
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t1.start()
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t2.start()
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t3.start()
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t1.join()
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t3.join()
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t2.join()
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print(f'gesamtwert={gesamtwert}')
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print(f'message={message}')
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