假设导入了json，代码应该可以正常工作
如果在代码中添加一些print语句，可以看到它正在工作

import json

# creating a json file for top scores
# making the dictionary
top5 = {"1": 4, "2": 4, "3": 3, "4": 1, "5": 0}

# serializing json
json_object = json.dumps(top5, indent=5)

# writing to json file
with open("topfive.json", "w") as outfile:
    outfile.write(json_object)

# opening json file
with open("topfive.json", "r") as openfile:
    json_object = json.load(openfile)  # reading from json

    print(json_object)
    print(type(json_object))
    print(json_object["1"])

字符串
输出将是

{'1': 4, '2': 4, '3': 3, '4': 1, '5': 0}
<class 'dict'>
4

型

更好的实现

另一种更可读的实现是将分数存储为数组，而不是字典中的字符串索引，每当用户有新分数时，您就将其添加到数组中，按如下方式对其进行排序和截断

import json

def load_leaderboard():
    try:
        with open("top_five.json", "r") as infile:
            leaderboard = json.load(infile)
    except (FileNotFoundError, KeyError):
        leaderboard = []
    return leaderboard

def update_leaderboard(new_score):
    leaderboard = load_leaderboard()

    leaderboard.append(new_score)

    # Order the leaderboard by score in descending order
    leaderboard.sort(reverse=True)

    # Keep only the top 5 scores
    leaderboard = leaderboard[:5]

    with open("top_five.json", "w") as outfile:
        json.dump(leaderboard, outfile, indent=4)

# Example usage:

update_leaderboard(100)
update_leaderboard(200)
update_leaderboard(120)
update_leaderboard(130)
update_leaderboard(180)

print("Updated Leaderboard:", load_leaderboard())

update_leaderboard(90)  # should not be added to the leaderboard
update_leaderboard(10)  # should not be added to the leaderboard

print("Updated Leaderboard:", load_leaderboard())

update_leaderboard(500)  # should be added to the leaderboard

print("Updated Leaderboard:", load_leaderboard())

型
输出将是：

Updated Leaderboard: [200, 180, 130, 120, 100]
Updated Leaderboard: [200, 180, 130, 120, 100]
Updated Leaderboard: [500, 200, 180, 130, 120]

型