源代码下载: learnjson-cn.json
JSON是一个极其简单的数据交换格式。按json.org说的,它对人类易读易写,对机器易解析易生成。
一段JSON可以是下文列出的类型的任意值,但实际一般按以下两种方式之一呈现:
{ }
)。按不同语言,这可能被理解为对象/记录/结构体/字典/哈希表/有键列表/关联数组[ ]
)。按不同语言,这可能被理解为数组/向量/列表/序列纯正的JSON实际上没有注释,但是大多数解析器都接受C-风格(//, /* */)的注释。一些解析器还容许trailing comma,即最后一个数组元素或最后一个对象属性之后的逗号。不过为了兼容性最好避免。
因此,本教程的一切都会是100%有效的JSON。幸亏,它的表达能力很丰富。
支持的数据类型:
"hello"
、"\"A quote.\""
、"\u0abe"
、"Newline.\n"
23
、0.11
、12e10
、3.141e-10
、1.23e+4
{ "key": "value" }
["Values"]
true
、false
、null
{
"key": "value",
"keys": "must always be enclosed in double quotes",
"numbers": 0,
"strings": "Hellø, wørld. All unicode is allowed, along with \"escaping\".",
"has bools?": true,
"nothingness": null,
"big number": 1.2e+100,
"objects": {
"comment": "Most of your structure will come from objects.",
"array": [0, 1, 2, 3, "Arrays can have anything in them.", 5],
"another object": {
"comment": "These things can be nested, very useful."
}
},
"silliness": [
{
"sources of potassium": ["bananas"]
},
[
[1, 0, 0, 0],
[0, 1, 0, 0],
[0, 0, 1, "neo"],
[0, 0, 0, 1]
]
],
"alternative style": {
"comment": "check this out!"
, "comma position": "doesn't matter, if it's before the next key, it's valid"
, "another comment": "how nice"
},
"whitespace": "Does not matter.",
"that was short": "And done. You now know everything JSON has to offer."
}
有建议?或者发现什么错误?在GitHub上开一个issue,或者发起pull request!
原著Anna Harren,并由2个好心人修改。