不理解python中的部分代码

Question

你能告诉我以下python代码的第6行是怎么回事吗？

command = ""
started = False
while True:
    command = input("> ")
    if command == "start":
        if started:       #didnt understand this
            print("Car already started")
        else:
            started = True
            print("Car started ... ready to go")
    elif command == "stop":
        print("Car stopped")
    elif command == "help":
        print('''start - to start the
                 stop - to stop the car
                 quit - to exit''')
    elif command == "quit":
        break
    else:
        print("I don't get it")

Answer 1

第六行说如果开始是True 然后是print("Car already started")。它比说 if started == True 更简单，但与 started 评估为 True 或 False 的含义相同