Kotlin的参考资料

参考资料和站点

http://kotlinlang.org/ 官方网站

https://github.com/JetBrains/kotlin/releases/tag/v1.0.6 下载compiler,如果IDEA已经安装了,不需要安装即可直接使用

http://kotlinlang.org/docs/reference/

http://kotlinlang.org/docs/kotlin-docs.pdf 这个参考很全面

http://kotlinlang.org/api/latest/jvm/stdlib/index.html 标准库

http://kotlinlang.org/docs/reference/idioms.html 惯用法

https://github.com/Kotlin/kotlin-koans 例子练习

https://blog.jetbrains.com/kotlin 官方blog

https://blog.jetbrains.com/kotlin/category/releases/ 发布历史

https://github.com/JetBrains/kotlin-examples 例子

https://github.com/JetBrains/kotlin-benchmarks 和JAVA的性能比较

http://www.println.net/ 国内的短视频

Kotlin Benchmarks

https://github.com/JetBrains/kotlin-benchmarks

报告结果拷贝到本机的IIS上,并能够获取Google等Javascript CDN,才可看到报告【这里有个很好的性能测试工具使用参考JMH org.openjdk.jmh】

Comparison with Baseline

For multicolumn search separate subqueries with semicolon: "IntListBenchmark;manual;1000"

Difference is current score minus baseline score. Positive values are regressions, negative are gains.

Switch to comparison with Java

Search: 

Benchmark ▲

Size ▲

Average Time

Unit

Error

Difference

% Difference

ClassArrayBenchmark.copy

10

0.05

us/op

± 2.60% (0.00)

   

ClassArrayBenchmark.copy

1000

5.92

us/op

± 0.53% (0.03)

-0.26

-4.23%

ClassArrayBenchmark.copy

100000

634.74

us/op

± 7.90% (50.16)

   

ClassArrayBenchmark.copyManual

10

0.06

us/op

± 2.92% (0.00)

   

ClassArrayBenchmark.copyManual

1000

8.03

us/op

± 1.82% (0.15)

+0.16

+2.06%

ClassArrayBenchmark.copyManual

100000

802.06

us/op

± 0.71% (5.70)

   

ClassArrayBenchmark.countFiltered

10

0.40

us/op

± 1.12% (0.00)

   

ClassArrayBenchmark.countFiltered

1000

46.94

us/op

± 3.07% (1.44)

   

ClassArrayBenchmark.countFiltered

100000

5670.62

us/op

± 3.57% (202.40)

   

ClassArrayBenchmark.countFilteredLocal

10

0.39

us/op

± 0.84% (0.00)

-0.01

-2.21%

ClassArrayBenchmark.countFilteredLocal

1000

46.44

us/op

± 1.99% (0.92)

   

ClassArrayBenchmark.countFilteredLocal

100000

5599.66

us/op

± 1.20% (67.01)

-125.05

-2.18%

ClassArrayBenchmark.countFilteredManual

10

0.39

us/op

± 1.93% (0.01)

   

ClassArrayBenchmark.countFilteredManual

1000

46.28

us/op

± 1.07% (0.50)

   

ClassArrayBenchmark.countFilteredManual

100000

5638.10

us/op

± 1.20% (67.56)

   

Kotlin Compiler

Jetbrains Idea下的默认kotlin安装

wps691B.tmp

独立的compiler包下载解压的结果

E:\tool\kotlin\kotlinc 的目录

[.]         [..]        [bin]       build.txt   [lib]       [license]

               1 个文件              5 字节

E:\tool\kotlin\kotlinc\bin 的目录

[.]               [..]              kotlin            kotlin.bat        kotlinc           kotlinc-js        kotlinc-js.bat    kotlinc-jvm

kotlinc-jvm.bat   kotlinc.bat

               8 个文件          7,900 字节

E:\tool\kotlin\kotlinc\lib 的目录

[.]                                [..]                               allopen-compiler-plugin.jar        android-extensions-compiler.jar

kotlin-annotation-processing.jar   kotlin-ant.jar                     kotlin-build-common-test.jar       kotlin-build-common.jar

kotlin-compiler.jar                kotlin-daemon-client.jar           kotlin-jslib-sources.jar           kotlin-jslib.jar

kotlin-preloader.jar               kotlin-reflect.jar                 kotlin-runner.jar                  kotlin-runtime-sources.jar

kotlin-runtime.jar                 kotlin-test.jar                    noarg-compiler-plugin.jar

              17 个文件     25,843,381 字节

E:\tool\kotlin\kotlinc\license 的目录

[.]           [..]          LICENSE.txt   NOTICE.txt    [third_party]

               2 个文件          1,083 字节

E:\tool\kotlin\kotlinc\license\third_party 的目录

[.]                            [..]                           args4j_LICENSE.txt             asm_license.txt                closure-compiler_LICENSE.txt

dart_LICENSE.txt               jshashtable_license.txt        json_LICENSE.txt               maven_LICENSE.txt              pcollections_LICENSE.txt

prototype_license.txt          rhino_LICENSE.txt

              10 个文件         78,237 字节

2者是一样的,因此如果安装了idea的话,kotlin的环境默认就是可用的

if "%_KOTLIN_COMPILER%"=="" set _KOTLIN_COMPILER=org.jetbrains.kotlin.cli.jvm.K2JVMCompiler

if not "%JAVA_HOME%"=="" (

  if exist "%JAVA_HOME%\bin\java.exe" set "_JAVACMD=%JAVA_HOME%\bin\java.exe"

)

if "%_JAVACMD%"=="" set _JAVACMD=java

rem We use the value of the JAVA_OPTS environment variable if defined

set _JAVA_OPTS=-Xmx256M -Xms32M

if not "%_KOTLIN_RUNNER%"=="" (

  "%_JAVACMD%" %_JAVA_OPTS% "-Dkotlin.home=%_KOTLIN_HOME%" -cp "%_KOTLIN_HOME%\lib\kotlin-runner.jar" ^

    org.jetbrains.kotlin.runner.Main %*

) else (

  "%_JAVACMD%" %_JAVA_OPTS% -noverify -cp "%_KOTLIN_HOME%\lib\kotlin-preloader.jar" ^

    org.jetbrains.kotlin.preloading.Preloader -cp "%_KOTLIN_HOME%\lib\kotlin-compiler.jar" ^

    %_KOTLIN_COMPILER% %*

)

直接从命令行运行kotlin,最终的结果是转换成JAVA字节码的

kotlinc HelloWorld.kt -include-runtime -d HelloWorld.jar

$ java -jar HelloWorld.jar

kotlinc HelloWorld.kt -d HelloWorld.jar

java -cp $KOTLIN_HOME/lib/kotlin-runtime.jar:HelloWorld.jar HelloWorldKt

脚本方式执行

$ kotlinc-jvm -cp joda-time-2.9.4/joda-time-2.9.4.jar
Welcome to Kotlin version 1.1-M04 (JRE 1.8.0_66-internal-b17)
Type :help for help, :quit for quit
>>> import org.joda.time.DateTime
>>> DateTime.now()

kotlin-docs

http://kotlinlang.org/docs/kotlin-docs.pdf 152页,这个参考比较全

Kotlin For Android

《Kotlin for android Developers》 中文翻译 关于在android下的开发,使用kotlin可以大幅度的简化代码的编写

posted @ 2017-02-13 17:18  2012  阅读(1018)  评论(0编辑  收藏  举报