如何从 csv 字典中随机选择 10 个项目？

Question

在我的 .csv 文件中，我总共有 12 个国家（有 12 个首都），但是我想从这 12 个国家中随机选择 10 个。

我从 stackoverflow 资源中发现了一些单项或成对选择，但不是从字典中随机选择 10 个项目。我该怎么做？

这是我在国家和首都考试中的相关代码，用户将首都输入到所询问的国家，并输出正确或不正确的答案。

    #Defining the function of reading .csv file from path into dictionary
def readCsvIntoDictionary(path):
    dic = {}
    with open(path, 'r', newline='') as f:
        reader = csv.reader(f)
        for row in reader:
            dic[row[0]] = row[1];
    return dic;

count = 0;

    # for loop with key variable definition in dic
for key in dic:
    # ans variable defined for user input
    ans = input('What is the capital of ' + key + '?\n')
    # User can input lower and upper answers
    if(ans.lower() == dic[key].lower()):
        # key lookup in dic (dictionary) if answer is correct at end of the loop
        dic[key] = 'Correct! ' + dic[key] + ' is the capital of ' + key;
        count = count + 1;
    else:
        # key lookup in dic (dictionary) if answer is incorrect at end of the loop
        dic[key] = 'Wrong! \'' + ans + '\' is not the capital of ' + key + ', it\'s ' + dic[key];

谢谢！

Answer 1

您正在寻找sample 密钥：

for key in random.sample(dic.keys(), 10):