python FOR循环

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answer = 10 for i in range(3):     guess = int(input('猜一个'))     if  guess == answer:         print('ok')         break     elif guess > answer:         print('猜大了')     else:         print('猜小了') else:     print('机会用完了')   for i in range(10):     print('loop',i) print('---------') for i in range(0,10,2):  #最后一个２是步进值     print('loop',i) print('---------') for i in range(1,11):  #或者可以定义从１开始到１１，也是１０个循环     print('loop',i) print('---------')