Question

我需要帮助，因为我想从特定sid的json中解析python中的字段num1，num2和action。这是JSON代码。请帮忙，因为我是新手。

{
    "contestants": [{
        "sid": "53d88ec46fb1721307f3a185",
        "u": {
            "_id": {
                "$id": "53d88ec46fb1721307f3a185"
            },
            "g": "M",
            "id": "536lleepkyhnowfh67elpucsq",
            "n": "Asif Khairani",
            "st": "asif-khairani-53d88ec4b24d8"
        },
        "cl": {
            "_id": {
                "$id": "51ff5d1370b17224520002dc"
            },
            "st": "tirpude-institute-of-management-education",
            "ti": "Tirpude Institute of Management Education",
            "n": "Brands",
            "cst": "brands",
            "r": null,
            "c": null
        },
        "ct": "nagpur",
        "tv": 124,
        "cf": 20,
        "picture": "http:\/\/images.iimg.in\/u\/53d88ec46fb1721307f3a185-190-190\/asif-khairani-53d88ec4b24d8.img",
        "action": "+",
        "voteText": "Votes",
        "num1": 6,
        "num2": 5
    }]
}

Answer 1

使用json模块;

import json
myFile = open(youtJsonFile, 'r')
yourJsonText = myFile.read()
myFile.close()
myObject = json.loads(yourJsonText)
# Access your Json file by dict or lists python
print myObject['contestants'][0]['num1']
print myObject['contestants'][0]['num2']

Answer 2

首先，您需要在脚本/代码中import json，然后将所有JSON代码放在单引号之间，以使您的JSON成为字符串：

raw_json = '{"contestants":[{"sid":"53d88ec46fb1721307f3a185","u":{"_id":{"$id":"53d88ec46fb1721307f3a185"},"g":"M","id":"536lleepkyhnowfh67elpucsq", "n":"Asif Khairani","st":"asif-khairani-53d88ec4b24d8"},"cl":{"_id":{"$id":"51ff5d1370b17224520002dc"},"st":"tirpude-institute-of-management-education","ti":"Tirpude Institute of Management Education","n":"Brands","cst":"brands","r":null,"c":null},"ct":"nagpur","tv":124,"cf":20,"picture":"http:\/\/images.iimg.in\/u\/53d88ec46fb1721307f3a185-190-190\/asif-khairani-53d88ec4b24d8.img","action":"+","voteText":"Votes","num1":6,"num2":5}]}'

一旦你在变量raw_json中拥有JSON代码就像一个字符串，你必须这样做：

parsed_json = json.loads(raw_json)

并且您将拥有类似python dict的JSON代码，并且可以访问以下字段：

parsed_json['contestants']   # Get contenstants list
parsed_json['contestants'][0]  # Get first object in contestants list

或任何你需要的东西！

如何在Python中解析复杂的JSON

2 个答案: