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JSON string-the method that assigns the initial contact background from map to JSON

Source: Internet
Author: User
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JSON array:

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Back to the foreground and foreground back to the background is a JSON string

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Turn map,list in Java into JSON format

(map to Jsonobject list turns into Jsonarray)

The former type is all weaker than the latter type (the former is a specific type of <type>)

(The following are: strings, numbers, objects, arrays, Boolean values, or null, and so on )

JSON string-the method that assigns the initial contact background from map to JSON

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