Question

我有一个嵌套的for循环，如下所示：

cv_list_dic = cv_list()
for cv in cv_list_dic['results']:
    cv_name = cv['name']
    if qq_cv(cv_name):
            cv_versions = (cv['versions'])
            cv_id_list = []
            for cv_ids in cv_versions:
                    ver_id = (cv_ids['id'])
                    cv_id_list.append(ver_id)
            max_id = (max(cv_id_list))
            qq_cv_id = (cv_name, max_id)
            print(qq_cv_id)

输出是一个元组列表（有更多的元组，它只是一个例子）：

('cv1', 152)
('cv2', 35)

我的问题是我需要那些for循环之外的那些元组。我试图创建一个空列表并附加到它，但它只附加最后一项。

Answer 1

我试图创建一个空列表并附加到它

这是正确的方向，所以你只需要实际编码：）

cv_list_dic = cv_list()
results = [] # here is your list with results
for cv in cv_list_dic['results']:
    cv_name = cv['name']
    if qq_cv(cv_name):
            cv_versions = (cv['versions'])
            cv_id_list = []
            for cv_ids in cv_versions:
                    ver_id = (cv_ids['id'])
                    cv_id_list.append(ver_id)
            max_id = (max(cv_id_list))
            qq_cv_id = (cv_name, max_id)
            print(qq_cv_id)
            results.append(print(qq_cv_id))

Answer 2

这应该有效，将cv_list_dic定义为空列表（在循环开始之前），并将结果附加到此列表中。

cv_list_dic = cv_list()
qq_cv_id = []
for cv in cv_list_dic['results']:
    cv_name = cv['name']
    if qq_cv(cv_name):
            cv_versions = (cv['versions'])
            cv_id_list = []
            for cv_ids in cv_versions:
                    ver_id = (cv_ids['id'])
                    cv_id_list.append(ver_id)
            max_id = (max(cv_id_list))
            qq_cv_id.append((cv_name, max_id))
            print(qq_cv_id)

python：从for循环之外的多个for循环获取输出

2 个答案: