不能将本地json文件文本用作intiger

Question

    import multiprocessing
    import urllib.request
    import json
    
    with open("crypto.json") as f:
        data = json.loads(f)
        result = data
    
    print(type(result))
    
    
    resultbtc = int(result['User']['BTC'])
    resultdash = int(result['User']['DASH'])
    resulteth = int(result['User']['ETH'])
    
    url = "https://min-api.cryptocompare.com/data/pricemulti?fsyms=ETH,DASH,BTC&tsyms=BTC,EUR& api_key=9a96785fb79da776270b5ffc9e989d9092bbe24d23472e107301cec5ff8a82f3"
    data = urllib.request.urlopen(url)
    html = data.read()
    html = html.decode()
    o = json.loads(html)
    btcv = o['BTC']['EUR']
    dashv = o['DASH']['EUR']
    ethv = o['ETH']['EUR']
    fresbtc = btcv * resultbtc['BTC']
    fresdash = dashv * resultdash['DASH']
    freseth = ethv * resulteth['ETH']
    
    
    
    print ("Ο χρήστης",result['Name'],"εχει",fresbtc,"€ σε BITCOIN",freseth,"€ σε ETHEREUM",fresdash,"€ σε DASH")

JSON文件：

[
 {
    "Name" : "Jonh Smith",
    "BTC" : "23",
    "ETH" : "345",
    "DASH" : "1045"
 }
]

我希望提取BTC、ETH和DASH的值，并将它们作为整数使用实时数据打印它们的值，但是我得到了这个错误。

JSON回溯(最近一次调用)：文件“C：\UniPapei\Εισαγωγηστηνεπιστημητωνυπολογιστων\New

\Εργ4\bitcoinerg.py"，第20行，在data = json.loads(f) File TypeError第339行中，在last中(f‘JSON对象必须是str、字节或字节数组，TypeError: JSON对象必须是str、字节或字节数组，而不是TextIOWrapper

)

Answer 1

问题是，您试图在文件句柄上执行加载，而不是文件的内容。读取文件的内容并将其传递给json.loads()

with open("crypto.json") as f:
    data = json.loads(f.read())
    result = data

print(type(result))

Answer 2

json.loads()不接受文件对象。相反，使用json.load()

with open("crypto.json") as f:
    data = json.load(f)
    result = data