python处理json

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import json     #str----->json str = '{"name": "御姐", "age": 18}' j = json.loads(str) print(j) print(type(j))   #str----->json------>str str = '{"name": "御姐", "age": 18}' j = json.loads(str) print(j) j = json.dumps(j) print(type(j))     #读取字符串 获取里面的内容 with open('file1.txt') as jdata:     data = json.load(jdata)     print(data)     print(data["data"]["Response"]["products"]["prd_1"]["price"])     #读取字符串（json数组格式） 获取里面的内容 with open('file2.txt') as jdata:     data = json.load(jdata)     print(data[0])     print(data[0]["lastName"])     #读取字符串里套json数组 with open('file3.txt') as jdata:     data = json.load(jdata)     print(data["data"]["Response"])     print(data["data"]["Response"][0])     print(data["data"]["Response"][0]["firstName"])

附录：

file1.txt：

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{     "StoreID": "123",     "Status": 3,     "data": {         "Response": {             "section": "25",             "elapsed": 277.141,             "products": {                 "prd_1": {                     "price": 11.99,                     "qty": 10,                     "upc": "0787493"                 },                 "prd_2": {                     "price": 9.99,                     "qty": 2,                     "upc": "0763776"                 },                 "prd_3": {                     "price": 29.99,                     "qty": 8,                     "upc": "9948755"                 }             },             "type": "Tagged"         }     } }

 

file2.txt：

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[ { "firstName":"John" , "lastName":"Doe" }, { "firstName":"Anna" , "lastName":"Smith" }, { "firstName":"Peter" , "lastName":"Jones" } ]

 

file3.txt：

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{     "StoreID": "123",     "Status": 3,     "data": {         "Response": [{                 "firstName": "John",                 "lastName": "Doe"             },             {                 "firstName": "Anna",                 "lastName": "Smith"             },             {                 "firstName": "Peter",                 "lastName": "Jones"             }         ]     } }