learnxinyminutes-docs/zh-cn/yaml-cn.html.markdown

137 lines
4.0 KiB
Markdown
Raw Normal View History

2014-06-01 01:26:12 +00:00
---
language: yaml
contributors:
- ["Adam Brenecki", "https://github.com/adambrenecki"]
translators:
- ["Zach Zhang", "https://github.com/checkcheckzz"]
filename: learnyaml-cn.yaml
lang: zh-cn
---
2014-06-01 01:34:05 +00:00
YAML是一个数据序列化语言被设计成人类直接可写可读的。
2014-06-01 01:26:12 +00:00
2014-06-01 01:34:05 +00:00
它是JSON的严格超集增加了语法显著换行符和缩进就像Python。但和Python不一样
YAML根本不容许文字制表符。
2014-06-01 01:26:12 +00:00
```yaml
2014-06-01 01:34:05 +00:00
# YAML中的注解看起来像这样。
2014-06-01 01:26:12 +00:00
################
2014-06-01 01:34:05 +00:00
# 标量类型 #
2014-06-01 01:26:12 +00:00
################
2014-06-01 01:34:05 +00:00
# 我们的根对象 (它们在整个文件里延续) 将会是一个地图,
# 它等价于在别的语言里的一个字典,哈西表或对象。
2014-06-01 01:26:12 +00:00
key: value
another_key: Another value goes here.
a_number_value: 100
scientific_notation: 1e+12
boolean: true
null_value: null
key with spaces: value
2014-06-01 01:34:05 +00:00
# 注意到字符串不需要被引用。但是,它们可以被引用。
2014-06-01 01:26:12 +00:00
"Keys can be quoted too.": "Useful if you want to put a ':' in your key."
2014-06-01 01:34:05 +00:00
# 多行字符串既可以写成像一个'文字块'(使用 |)
# 或像一个'折叠块'(使用 '>')。
2014-06-01 01:26:12 +00:00
literal_block: |
This entire block of text will be the value of the 'literal_block' key,
with line breaks being preserved.
The literal continues until de-dented, and the leading indentation is
stripped.
Any lines that are 'more-indented' keep the rest of their indentation -
these lines will be indented by 4 spaces.
folded_style: >
This entire block of text will be the value of 'folded_style', but this
time, all newlines will be replaced with a single space.
Blank lines, like above, are converted to a newline character.
'More-indented' lines keep their newlines, too -
this text will appear over two lines.
####################
2014-06-01 01:34:05 +00:00
# 集合类型 #
2014-06-01 01:26:12 +00:00
####################
2014-06-01 01:34:05 +00:00
# 嵌套是通过缩进完成的。
2014-06-01 01:26:12 +00:00
a_nested_map:
key: value
another_key: Another Value
another_nested_map:
hello: hello
2014-06-01 01:34:05 +00:00
# 地图不用有字符串键值。
2014-06-01 01:26:12 +00:00
0.25: a float key
2014-06-01 01:34:05 +00:00
# 键值也可以是多行对象,用?表明键值的开始。
2014-06-01 01:26:12 +00:00
? |
This is a key
that has multiple lines
: and this is its value
2014-06-01 01:34:05 +00:00
# YAML也容许键值是集合类型但是很多语言将会抱怨。
2014-06-01 01:26:12 +00:00
2014-06-01 01:34:05 +00:00
# 序列 (等价于表或数组) 看起来像这样:
2014-06-01 01:26:12 +00:00
a_sequence:
- Item 1
- Item 2
2014-06-01 16:39:22 +00:00
- 0.5 # 序列可以包含不同类型。
2014-06-01 01:26:12 +00:00
- Item 4
- key: value
another_key: another_value
-
- This is a sequence
- inside another sequence
2014-06-01 01:34:05 +00:00
# 因为YAML是JSON的超集你也可以写JSON风格的地图和序列
2014-06-01 01:26:12 +00:00
json_map: {"key": "value"}
json_seq: [3, 2, 1, "takeoff"]
#######################
2014-06-01 01:34:05 +00:00
# 其余的YAML特点 #
2014-06-01 01:26:12 +00:00
#######################
2014-06-01 01:34:05 +00:00
# YAML还有一个方便的特点叫'锚',它让你简单地在整个文件里重复内容。
# 两个键值将会有相同的值:
2014-06-01 01:26:12 +00:00
anchored_content: &anchor_name This string will appear as the value of two keys.
other_anchor: *anchor_name
2014-06-01 01:34:05 +00:00
# YAML还有标签你可以用它显示地声明类型。
2014-06-01 01:26:12 +00:00
explicit_string: !!str 0.5
2014-06-01 01:34:05 +00:00
# 一些解析器实现特定语言的标签就像这个为了Python的复数类型。
2014-06-01 01:26:12 +00:00
python_complex_number: !!python/complex 1+2j
####################
2014-06-01 01:34:05 +00:00
# 其余的YAML类型 #
2014-06-01 01:26:12 +00:00
####################
2014-06-01 01:34:05 +00:00
# 字符串和数字不是仅有的YAML可以理解的标量。
# ISO 格式的日期和日期时间文字也是可以被解析的。
2014-06-01 01:26:12 +00:00
datetime: 2001-12-15T02:59:43.1Z
datetime_with_spaces: 2001-12-14 21:59:43.10 -5
date: 2002-12-14
2014-06-01 01:34:05 +00:00
# 这个!!binary标签表明一个字符串实际上是一个二进制blob的base64编码表示。
2014-06-01 01:26:12 +00:00
gif_file: !!binary |
R0lGODlhDAAMAIQAAP//9/X17unp5WZmZgAAAOfn515eXvPz7Y6OjuDg4J+fn5
OTk6enp56enmlpaWNjY6Ojo4SEhP/++f/++f/++f/++f/++f/++f/++f/++f/+
+f/++f/++f/++f/++f/++SH+Dk1hZGUgd2l0aCBHSU1QACwAAAAADAAMAAAFLC
AgjoEwnuNAFOhpEMTRiggcz4BNJHrv/zCFcLiwMWYNG84BwwEeECcgggoBADs=
2014-06-01 01:34:05 +00:00
# YAML还有一个集合类型它看起来像这样
2014-06-01 01:26:12 +00:00
set:
? item1
? item2
? item3
2014-06-01 01:34:05 +00:00
# 像Python一样集合仅是有null数值的地图上面的集合等价于
2014-06-01 01:26:12 +00:00
set2:
item1: null
item2: null
item3: null
```