YAML和JSON有什么区别? [英] What is the difference between YAML and JSON?

问题描述

YAML和JSON有什么区别，特别考虑以下几点?

What are the differences between YAML and JSON, specifically considering the following things?

• 性能(编码/解码时间)
• 内存消耗
• 表达清晰度
• 图书馆的可用性，易用性(我更喜欢C)

我打算在嵌入式系统中使用这两者之一来存储配置文件.

I was planning to use one of these two in our embedded system to store configure files.

我应该使用YAML还是JSON存储我的Perl数据?

推荐答案

从技术上讲，YAML是JSON的超集.这意味着，至少从理论上讲，YAML解析器可以理解JSON，但不一定非要反过来.

Technically YAML is a superset of JSON. This means that, in theory at least, a YAML parser can understand JSON, but not necessarily the other way around.

请参阅标题为"YAML:与JSON的关系"的部分中的官方规范.

.

通常，我喜欢某些关于YAML的东西，这些东西在JSON中不可用.

In general, there are certain things I like about YAML that are not available in JSON.

• @jdupont指出，YAML在外观上更易于查看.实际上， YAML主页本身就是有效的YAML，但是对于人类来说，它很容易阅读.
• YAML能够使用锚"引用YAML文件中的其他项目.因此，它可以处理在MySQL数据库中可能发现的关系信息.
• YAML在将其他序列化格式(例如JSON或XML 内)嵌入到YAML文件中时更加强大.

• As @jdupont pointed out, YAML is visually easier to look at. In fact the YAML homepage is itself valid YAML, yet it is easy for a human to read.
• YAML has the ability to reference other items within a YAML file using "anchors." Thus it can handle relational information as one might find in a MySQL database.
• YAML is more robust about embedding other serialization formats such as JSON or XML within a YAML file.

在实践中，最后两点对您或我所做的事情都不重要，但从长远来看，我认为YAML将是一种更健壮和可行的数据序列化格式.

In practice neither of these last two points will likely matter for things that you or I do, but in the long term, I think YAML will be a more robust and viable data serialization format.

目前，AJAX和其他网络技术倾向于使用JSON.目前，YAML被更多地用于脱机数据处理.例如，默认情况下，它包含在基于C的OpenCV计算机视觉软件包中，而JSON不包含在其中.

Right now, AJAX and other web technologies tend to use JSON. YAML is currently being used more for offline data processes. For example, it is included by default in the C-based OpenCV computer vision package, whereas JSON is not.

您将找到JSON和YAML的C库. YAML的库往往是较新的，但过去我对它们没有遇到任何麻烦.例如，参见 Yaml-cpp .

You will find C libraries for both JSON and YAML. YAML's libraries tend to be newer, but I have had no trouble with them in the past. See for example Yaml-cpp.

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