我想在rails中得到十进制数的一小部分.例如,我有一个数字,"1.23",我想得到"23"这可能太容易但是,有没有人知道我该怎么办？
嗨,我正在使用HTTPClient gem,我有一个问题; 我用它来进行用户注册.虽然运行用户名和密码插入到我的数据库,但它等待很长时间并返回给我
HTTP Client::ReceiveTimeout Error in User Controller#signup execution expired.
我该如何解决我的问题？
我在windows7(32位)上工作,我在安装捆绑时遇到错误;
Installing libv8 (3.3.10.4) with native extensions Unfortunately, a fatal error has occurred. Please report this error to the Bundler issue tracker at https://github.com/carlhuda/bundler/issues so that we can fix it. Thanks!
C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:533:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
C:/Ruby192/bin/ruby.exe extconf.rb
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.
Provided configuration …我在ruby中使用Twitter gem(1.7.1).我希望在Twitter上获得我的列表成员,但我得到最后二十名成员.我如何才能获得超过二十名成员？
listmembers = client.list_members(username, listname)
listmembers.users.each do |lmname|
p lmname.screen_name
end