Json教程、各平台开源组件及编辑预览工具站

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Json教程站：http://www.jiangliang.net/json/

各平台开源组件站：http://www.jiangliang.net/json/

Json在线编辑、预览站：http://www.jiangliang.net/json/

测试Json包：

{
aa: "11",
bb: '000',
cc: [
    1,
    2,
    3,
    4,
    5,
    6
]
}

附录：

json logo

Introducing JSON

Arabic Bulgarian Chinese Czech Dutch English Esperanto French German Greek Hebrew Hungarian Indonesian
Italian Japanese Korean Persian Polish Portuguese Russian Slovenian Spanish Swedish Turkish Vietnamese

object

{}
{ members }

members

pair
pair , members

pair

string : value

array

[]
[ elements ]

elements

value
value , elements

value

string
number
object
array
true
false
null

string

""
" chars "

chars

char
char chars

char

any-Unicode-character-
except-"-or-\-or-
control-character
\"
\\
\/
\b
\f
\n
\r
\t
\u four-hex-digits

number

int
int frac
int exp
int frac exp

int

digit
digit1-9 digits
- digit
- digit1-9 digits

frac

. digits

exp

e digits

digits

digit
digit digits

e
e+
e-
E
E+
E-

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language, Standard ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language.

JSON is built on two structures:

A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array.
An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence.

These are universal data structures. Virtually all modern programming languages support them in one form or another. It makes sense that a data format that is interchangable with programming languages also be based on these structures.

In JSON, they take on these forms:

An object is an unordered set of name/value pairs. An object begins with { (left brace) and ends with } (right brace). Each name is followed by : (colon) and the name/value pairs are separated by , (comma).

An array is an ordered collection of values. An array begins with [ (left bracket) and ends with ] (right bracket). Values are separated by , (comma).

A value can be a string in double quotes, or a number, or true or false or null, or an object or an array. These structures can be nested.

A string is a sequence of zero or more Unicode characters, wrapped in double quotes, using backslash escapes. A character is represented as a single character string. A string is very much like a C or Java string.