python 从嵌套字典中获取所有值

Question

我有以下字典并想要访问所有 id:

"applicationCategories": [
        {
            "id": "test1",
            "name": "Email",
            "applications": [
                {
                    "id": "aaaaaaa",
                    "name": "Gmail"
                },
                {
                    "id": "bbbbb",
                    "name": "Host-based email (POP3/IMAP/SMTP)"
                },
            ]
        },
        {
            "id": "test2",
            "name": "Blogging",
            "applications": [
                {
                    "id": "ccccc",
                    "name": "Blogger"
                },
                {
                    "id": "dddd",
                    "name": "WordPress"
                }
            ] 

我想访问所有 id ...例如:

applicationCategories["id"] = 给我 test1 但我想要所有这些... test1 和 test2

Answer 1

假设您提供的字典被引用为 my_dictionary。在这种情况下:

my_dictionary = {"applicationCategories": [
        {
            "id": "test1",
            "name": "Email",
            "applications": [
                {
                    "id": "aaaaaaa",
                    "name": "Gmail"
                },
                {
                    "id": "bbbbb",
                    "name": "Host-based email (POP3/IMAP/SMTP)"
                },
            ]
        },
        {
            "id": "test2",
            "name": "Blogging",
            "applications": [
                {
                    "id": "ccccc",
                    "name": "Blogger"
                },
                {
                    "id": "dddd",
                    "name": "WordPress"
                }
            ]}]} 

for elem in my_dictionary["applicationCategories"]:
        print(elem["id"])

此代码将打印 test1 和 test2，因此它允许您访问这些值。但是，您的问题非常模糊，我不太确定您想做什么。

applicationCategories["id"] = gives me test1

确实没有。