Question

我正在做一个简单的角色创建者代码，作为我在列表和词典章节中的Python挑战之一。我收到以下错误：“字符串索引超出范围”，我无法弄清楚原因。

以下是代码，包含错误的行以粗体显示：

print("\nChallenge 2:")

attributes = {"Pool":30, "S":["Strength",0], "H":["Health",0], "W":
["Wisdom",0],"D":["Dexterity",0]}

print("You have {} points to spend on either \n1) Strength\n2) Health\n3) Wisdom\n4) Dexterity"
  .format(attributes["Pool"]))

while True:

add_or_remove = input("\nPress A to add points from the pool to an attribute. Press R to remove points from an "
                    "attribute and add it back to the pool. Otherwise, press any key to quit: ").upper()

if add_or_remove == "A" or add_or_remove == "R":

    if add_or_remove == "A":

        while True:

            if attributes["Pool"] > 0:

                add_selection = input("\nPress S to add points to Strength. Press H to add points to Health. "
                                      "Press W to add points to Wisdom. Press D to add points to Dexterity. "
                                      "Otherwise, press ENTER to go back: ").upper()


                if add_selection in attributes.keys() and add_selection != "Pool":
                    amount = input(
                        "\nHow many points would you like to add to {}: ".format(attributes[add_selection][0]))
                    if amount.isdigit():
                        amount = int(amount)
                        if 0 < amount <= attributes["Pool"]:
                            attributes[add_selection][1] += amount
                            attributes["Pool"] -= amount
                            print("\nPoints have been added successfully.")
                            print("\nUpdated attributes list: \n", attributes.values())
                            break
                        elif amount > attributes["Pool"]:
                            print("!!! You only have {} points in your pool to add !!!".format(attributes["Pool"]))
                        else:
                            print("!!! Invalid Input !!!")
                    else:
                        print("!!! Invalid Input !!!")
                elif add_selection == "":
                    break
                else:
                    print("!!! No attribute found !!!")

            elif attributes["Pool"] == 0:
                print("!!! You don't have any points in your pool to add. You need to remove some points from your "
                      "attributes and return them to the pool !!!")
                break

    elif add_or_remove == "R":

        while True:

            if attributes["S"][1] + attributes["H"][1] + attributes["W"][1] + attributes["D"][1] > 0:

                remove_selection = input("\nPress S to remove points from Strength. Press H to remove points from Health."
                                     " Press W to remove points from Wisdom. Press D to remove points from Dexterity. "
                                     "\nOtherwise, press any key to go back:  ").upper()

错误的位置

                if remove_selection in attributes.keys() and remove_selection[1] > 0:

继续代码

                    remove_amount = input("\nHow many points would you like to remove from {}: "
                                          .format(attributes[remove_selection][0]))

                    if remove_amount.isdigit():
                        remove_amount = int(remove_amount)
                        if 0 < remove_amount <= attributes[remove_selection][1]:
                            attributes[remove_selection][1] -= remove_amount
                            attributes["Pool"] += remove_amount
                            print("\nPoints have been removed successfully.")
                            print("\nUpdated attributes list: \n", attributes.values())
                            break
                        elif remove_amount > attributes["Pool"]:
                            print("!!! You only have {} points in your pool to add !!!".format(attributes["Pool"]))
                        else:
                            print("!!! Invalid Input !!!")
                    else:
                        print("!!! Invalid Input !!!")
                elif remove_selection[1] == 0:
                    print("!!! That attribute does not have any points to remove !!!")
                else:
                    print("!!! No attribute found !!!")
            else:
                print("!!! You don't have any points in any of your attributes to remove !!!")
                break
else:
    break

我在错误行中尝试做的事情： 如果attributes.keys（）和remove_selection [1]＆gt;中的remove_selection 0：

首先，检查用户的输入选择是否在属性字典的键中，然后确保他们选择的用于删除点的属性选择实际上具有大于0的某些点数。

Answer 1

remove_selection[1]

您尝试在remove_selection字符串中获取第二个字母，而

remove_selection = input("\nPress S to remove points from Strength. Press H to remove points from Health."
                                     " Press W to remove points from Wisdom. Press D to remove points from Dexterity. "
                                     "\nOtherwise, press any key to go back:  ").upper()

所以remove_selection是S，W，D或H - 1个字母长。

我想你想要

if remove_selection in attributes.keys() and attributes[remove_selection][1] > 0:

代码中的字符串索引超出范围错误

1 个答案: