今天我正在练习“七周七种语言”的 Io 示例。
示例代码:
futureResult := URL with("http://google.com/") @fetch
writeln("Do something immediately while fetch goes on in background...")
writeln("This will block until the result is available.")
writeln("fetched ", futureResult size, " bytes")
运行异常:
Io$ io future.io
Exception: Object does not respond to 'URL'
---------
Object URL future.io 1
CLI doFile Z_CLI.io 140
CLI run IoState_runCLI() 1
直接在io中运行URL出现以下错误:
~$ io
Io 20110905
Io> URL
Exception: Object does not respond to 'URL'
---------
Object URL Command Line 1
Io>
我的环境是:
乌班图14.04
已关注post http://jetpackweb.com/blog/2011/02/08/io-language-addons-and-making-them-work-in-ubuntu/,我做了以下工作:
$ sudo apt-get install libevent-dev
$ ./build.sh
$ ./build.sh install
URL 错误已修复。
但抛出以下错误:
当获取在后台进行时立即执行某些操作...这
将阻塞直到结果可用。获取异常:错误
不响应“尺寸”---------错误尺寸
future.io 6 错误大小 future.io 6 CLI
doFile Z_CLI.io 140 CLI 运行
IoState_runCLI() 1
Post http://jetpackweb.com/blog/2011/02/05/installing-the-io-language-in-ubuntu/帮助安装 Io
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