如何在 Python 中解析 JSON 并将 2 个字段放入字典中？ [复制]

Posted 2023-02-21

【中文标题】如何在 Python 中解析 JSON 并将 2 个字段放入字典中？ [复制]

【英文标题】：How to parse JSON and put 2 fields in dictionary in Python? [duplicate]

【发布时间】：2018-11-19 20:45:50

【问题描述】：

我想解析 JSON 文件并从 JSON 中获取两个字段并将它们放入字典中。例如：

    "food": [
            "name": "pasta",
            "type": "blabla",
            "sauce": [
                    "name": "cream",
                    "url": "http://www...."
                
            ]
        , 
            "name": "pizza",
            "type": "bla",
            "sauce": [
                    "name": "Tomato",
                    "url": "http://www...."
                
            ]
        
    ]

我想得到：

pasta: cream, pizza: Tomato

【参考方案1】：

dict comprehension可以胜任：

data = 
    "food": [
            "name": "pasta",
            "type": "blabla",
            "sauce": [
                    "name": "cream",
                    "url": "http://www...."
                
            ]
        , 
            "name": "pizza",
            "type": "bla",
            "sauce": [
                    "name": "Tomato",
                    "url": "http://www...."
                
            ]
        
    ]


foods = data['food']
print( food['name']:food['sauce'][0]['name'] for food in foods)

【讨论】：

如果 json 是另一种文件或字符串格式，则必须使用 json.load(file) 或 json.loads(string)：类似于 import json; json.load("foods.json")

"food": [ "name": "pasta", "type": "blabla", "sauce": [ "name": "cream", "url": "@ 987654321@...." "name": "Tomato", "url": "www...." ] , "name": "pizza", "type": "bla" , "sauce": [ "name": "Tomato", "url": "www...." ] ] 如果我添加另一种酱汁，我想得到：pasta: cream Tomato ，披萨：番茄