JSON(JavaScript Object Notation) 是一种轻量级的数据交换格式。它基于JavaScript(Standard ECMA-262 3rd Edition - December 1999)的一个子集。 JSON采用完全独立于语言的文本格式,但是也使用了类似于C语言家族的习惯(包括C, C++, C#, Java, JavaScript, Perl, Python等)。这些特性使JSON成为理想的数据交换语言。易于人阅读和编写,同时也易于机器解析和生成。
import json
Python解析Json字符串数组对象:
Python解析Json,Python格式化Json,
Python处理Json对象,Python处理Json数组
1 | import json |
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2 | data= json.loads('{"ID": "2", "IP":"192.168.1.186", "Port": "3000", "Sensor_Count":"1", "Control_Count": "1", "Sensors":{"Sensor_Name": "Json解析", "Type_Count": "1", "Types":{ "types":["temp","C"],"types":["hum","N"],}},"Controls":["LCD","Relay"] }') |
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3 | print data.ID |
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4 | 输出结果:"2" |
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5 | data = json.dump(data) |
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6 | print data |
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7 | 输出结果:{"ID": "2", "IP":"192.168.1.186", "Port": "3000", "Sensor_Count":"1","Control_Count": "1", "Sensors":{"Sensor_Name": "tem", "Type_Count": "1", "Types":{"types":["temp","C"],"types":["hum","N"],}},"Controls":["LCD","Relay"] } |
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data1 = {'b':789,'c':456,'a':123}
data2 = {'a':123,'b':789,'c':456}
d1 = json.dumps(data1,sort_keys=True)
d2 = json.dumps(data2)
d3 = json.dumps(data2,sort_keys=True)
print d1
print d2
print d3
print d1==d2
注:本来data1和data2数据应该是一样的(词典无序的)
结果
data1 = {'b':789,'c':456,'a':123}
d1 = json.dumps(data1,sort_keys=True,indent=4)
print d1
结果
注:separators = (',', ':')为固定吧,多或少或反都不是理想的结果