Python：为什么我的 except 块甚至不是真的运行？

Question

我有一个 try-except 块：

YourSecondPick = input("Second Card:");

try:
    if(int(YourSecondPick) not in YourHand):
        print("\nYou don't have that card.");
        return Main(40);
    else:
        YourTotalPick = int(YourFirstPick) + int(YourSecondPick);
        print("\nYou put down a total of {0}".format(YourTotalPick));
        YourHand.remove(int(YourFirstPick));
        YourHand.remove(int(YourSecondPick));
        YourHand.append(Deck.pop(random.choice(range(len(Deck)))));
        YourHand.append(Deck.pop(random.choice(range(len(Deck)))));
        return Main(45);
except ValueError as e:
    print("\nThe input you entered is not a number");
    print(e);
    return Main(40);

如果你输入了两张手牌，例如 15 30，则应该将这些牌的总和相加并放入一个新列表中。然后它会从你的卡片中取出卡片，并给你另外两张卡片。一旦发生这种情况，它应该返回到下一个块：

if(line == 45):
    while(len(Deck) / NumberOfPlayers >= 1):
            if(OneCard and Computer1 == True):
                Computer1Pick = (random.choice(Computer1Hand));
                print("Computer1 put down a {0}".format(Computer1Pick));
                MaxList.append(Computer1Pick);
                Computer1Hand.remove(int(Computer1Pick));
                Computer1Hand.append(Deck.pop(random.choice(range(len(Deck)))));

            elif(TwoCards and Computer1 == True):
                Computer1FirstPick = (random.choice(Computer1Hand));
                Computer1SecondPick = (random.choice(Computer1Hand));
                Computer1TotalPick = int(Computer1FirstPick) + int(Computer1SecondPick);
                print("Computer1 put down a total of {0}".format(Computer1TotalPick));
                MaxList.append(Computer1TotalPick);
                Computer1Hand.remove(int(Computer1FirstPick));
                Computer1Hand.remove(int(Computer1SecondPick));
                Computer1Hand.append(Deck.pop(random.choice(range(len(Deck)))));
                Computer1Hand.append(Deck.pop(random.choice(range(len(Deck)))));

            else:
                Computer1Pick = None;

            if(OneCard and Computer2 == True):
                Computer2Pick = (random.choice(Computer2Hand));
                print("Computer2 put down a {0}".format(Computer2Pick));
                MaxList.append(Computer2Pick);
                Computer2Hand.remove(int(Computer2Pick));
                Computer2Hand.append(Deck.pop(random.choice(range(len(Deck)))));

            else:
                Computer2Pick = None;

            if(OneCard and Computer3 == True):
                Computer3Pick = (random.choice(Computer3Hand));
                print("Computer3 put down a {0}".format(Computer3Pick));
                MaxList.append(Computer3Pick);
                Computer3Hand.remove(int(Computer3Pick));
                Computer3Hand.append(Deck.pop(random.choice(range(len(Deck)))));

            else:
                Computer3Pick = None;
            return Main(50);

这段代码出现了两个问题。一;即使您正确输入了数据，try-except 块也会始终发布 except。二;即使我输入了return Main(45);，下一个代码块也不会出现。我不知道为什么会这样，但我认为这可能与我的代码设置方式有关。如果您能告诉我为什么会发生这种情况以及我应该做些什么来改进这一点，我将非常感激。我不知道究竟是什么原因造成的，但我有一种预感，那就是 Main(#) 部分。这是我运行它时发生的情况。

Your cards: [48, 50, 39, 83, 73]

Choose a number from your hand or enter a command.

First Card: 48
Second Card: 50

You put down a total of 98
Computer1 put down a total of 164

The input you entered is not a number

max() arg is an empty sequence

Your cards: [39, 83, 73, 18, 17]

Choose a number from your hand or enter a command.

First Card:

即使48 和50 不在列表中，它仍然希望留在try-except 块中。如果在这里找不到问题，请单击此链接Repl.it Code。这将带您查看完整代码。

Answer 1

我忘记将总数添加到列表中。

MaxList.append(int(YourTotalPick));