是否将原始类型视为JSON? [英] Is a primitive type considered JSON?
问题描述
JSON的大多数位置都采用类似
Most place the JSON is in format like
{
color: "red",
value: "#f00"
}
或
[
{ color: "red", value: "#f00" },
{ color: "red", value: "#f00" }
]
我想问的是，字符串，布尔值，int还是JSON之类的原始类型吗?
And I want to ask is primitive type like string, bool, int also JSON?
我找到了跟踪链接，
http://json-schema.org/latest/json-schema- core.html
https://zh.wikipedia.org/wiki/JSON
https://www.ietf.org/rfc/rfc4627.txt
http://www.c-sharpcorner.com /uploadfile/3d39b4/data-types-in-json/
然后
在RFC4627中说
JSON可以表示四种原始类型(字符串，数字，布尔值， 和null)和两种结构化类型(对象和数组).
JSON can represent four primitive types (strings, numbers, booleans, and null) and two structured types (objects and arrays).
字符串是零个或多个Unicode字符[UNICODE]的序列.
A string is a sequence of zero or more Unicode characters [UNICODE].
对象是零个或多个名称/值的无序集合 对，其中名称是字符串，值是字符串，数字， 布尔值，null，对象或数组.
An object is an unordered collection of zero or more name/value pairs, where a name is a string and a value is a string, number, boolean, null, object, or array.
数组是零个或多个值的有序序列.
An array is an ordered sequence of zero or more values.
术语对象"和数组"来自以下约定: JavaScript.
The terms "object" and "array" come from the conventions of JavaScript.
所以我把它读为纯字符串，像布尔值
So I reading it as pure string, number boolean like
"a string"
100
true
都是JSON，
但是我的两个同事认为原始类型只能是对象中的值，
But two of my colleagues think that primitive types can only be value in object,
{ ASTRING : "astring" }是JSON，
如果只有"a string"，则不会调用此方法，因为它不是JSON格式，
And if there's only "a string", this is not called, as it is not JSON format,
我认为我和我的同事可能不够专业，无法判断
I think I, and my colleagues may not be professional enough to judge it,
所以我想知道，是纯原始类型的JSON吗?
So I want to know, is pure primitive type JSON?
.
对我来说，另一个想法是，JSON被称为交换数据的便捷方法，但是如果这种格式不支持纯字符串，则
Another idea for me is that , JSON is called a convenient way to exchanging data, but if this format didn't support pure string,
就是说，如果我只想抛出一个字符串，我不能使用JSON来做到这一点吗?
that is, if I just want to throw out a string, I can't use JSON to do it?
，并且必须强制将其更改为{ Message : "a message"}，
and have to force it change to { Message : "a message"},
并且不能使用我认为更简单的方法，只需抛出"a message" ...?
and cannot use a way which I think is simpler just throw "a message" ...?
推荐答案
{ "astring" }是无效的JSON，"astring"或astring都不有效，因为我们需要键和值，例如{ KEY : VALUE }其中KEY始终是字符串，而VALUE可以是字符串，数字，布尔值或null.
{ "astring" } is not valid JSON and neither is "astring" or astring, as we need both a key and a value, e.g. { KEY : VALUE } where KEY is always a string and VALUE can be a string, number, boolean, or null.
根据规格:
是的，正如规范所说，JSON可以是顶级原始值，而无需 包装它的对象. –安迪·雷
Yes, as the spec says, JSON can be a top level primitive value without an object wrapping it. – Andy Ray
如果我正确理解，则该评论不正确.有效的JSON本身从来都不是顶级原始值.如果您仍然感到困惑，这应该可以解决问题:
If I understood it correctly, that comment is not correct. Valid JSON is never a top-level primitive value by itself. If you're still confused, this should clear things up:
-
JSON语法
JSON Grammar
JSON文本是令牌序列.令牌集包括 六个结构字符，字符串，数字和三个文字 名称.
A JSON text is a sequence of tokens. The set of tokens includes six structural characters, strings, numbers, and three literal names.
JSON文本是序列化的对象或数组.
A JSON text is a serialized object or array.
JSON-text = object / array
这些是六个结构特征:
begin-array = ws %x5B ws ; [ left square bracket
begin-object = ws %x7B ws ; { left curly bracket
end-array = ws %x5D ws ; ] right square bracket
end-object = ws %x7D ws ; } right curly bracket
name-separator = ws %x3A ws ; : colon
value-separator = ws %x2C ws ; , comma
六个空格中的任何一个之前或之后都可以使用无关紧要的空格 结构特征.
Insignificant whitespace is allowed before or after any of the six structural characters.
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