wzhang1987 (KKKOOO)

求助关于 sublime text 3 中 gets () 的问题

wzhang1987 — Fri, 09 May 2014 17:11:21 +0800

请教各位大侠，在 ubuntu 的 sublime text 3 中下面代码：

print("Please input your name:")
name = gets() #gets.chop() puts "hello #{name}".upcase

在 ctrl+b 执行时为什么会直接显示如下结果：

Please input your name:HELLO

而不会像 irb 里面一样能让键盘的输入，比如 world 后生成如下结果：

Please input your name:HELLO WORLD

即没有控制台的输入过程？无法将键盘输入传入参数。

是有什么东东我没有设置吗？

there is something wrong with the install,please tell me how to fix it,thanks!

wzhang1987 — Wed, 26 Feb 2014 23:56:47 +0800

i read the wiki and follow it,then i use the rvm to install ruby 2.0.0

during the install it shows:

Error running '__rvm_patch -F 25 -p1 -N -f -i /home/good/.rvm/patches/ruby/libyaml015.patch', showing last 15 lines of /home/good/.rvm/log/1393429325_ruby-2.0.0-p451/patch.apply.libyaml015.log patching file ext/psych/yaml/scanner.c Hunk #1 FAILED at 615. Hunk #2 FAILED at 1103. Hunk #3 succeeded at 1181 with fuzz 2 (offset 5 lines). Hunk #4 FAILED at 1211. Hunk #5 succeeded at 1236 with fuzz 3 (offset 5 lines). Hunk #6 FAILED at 1264. Hunk #7 FAILED at 2584. 5 out of 7 hunks FAILED -- saving rejects to file ext/psych/yaml/scanner.c.rej patching file ext/psych/yaml/yaml_private.h Hunk #1 succeeded at 7 with fuzz 3. Hunk #2 succeeded at 453 with fuzz 2 (offset 21 lines). patching file ext/psych/yaml/config.h Hunk #1 FAILED at 1. 1 out of 1 hunk FAILED -- saving rejects to file ext/psych/yaml/config.h.rej

-------------------------------------then it may be ok,but i dont't know :--------------------------------

ruby-2.0.0-p451 - #applying patch /home/good/.rvm/patches/ruby/GH-488.patch. ruby-2.0.0-p451 - #configuring.................................................. ruby-2.0.0-p451 - #post-configuration. ruby-2.0.0-p451 - #compiling............................................................................ ruby-2.0.0-p451 - #installing............................. ruby-2.0.0-p451 - #making binaries executable. ruby-2.0.0-p451 - #downloading rubygems-2.2.2 % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 404k 100 404k 0 0 51090 0 0:00:08 0:00:08 --:--:-- 69427 No checksum for downloaded archive, recording checksum in user configuration. ruby-2.0.0-p451 - #extracting rubygems-2.2.2. ruby-2.0.0-p451 - #removing old rubygems. ruby-2.0.0-p451 - #installing rubygems-2.2.2.............. ruby-2.0.0-p451 - #gemset created /home/good/.rvm/gems/ruby-2.0.0-p451@global ruby-2.0.0-p451 - #importing gemset /home/good/.rvm/gemsets/global.gems..... ruby-2.0.0-p451 - #generating global wrappers. ruby-2.0.0-p451 - #gemset created /home/good/.rvm/gems/ruby-2.0.0-p451 ruby-2.0.0-p451 - #importing gemsetfile /home/good/.rvm/gemsets/default.gems evaluated to empty gem list ruby-2.0.0-p451 - #generating default wrappers. ruby-2.0.0-p451 - #adjusting #shebangs for (gem irb erb ri rdoc testrb rake). Install of ruby-2.0.0-p451 - #complete Please be aware that you just installed a ruby that requires 2 patches just to be compiled on an up to date linux system. This may have known and unaccounted for security vulnerabilities. Please consider upgrading to ruby-2.1.1 which will have all of the latest security patches. Ruby was built without documentation, to build it run: rvm docs generate-ri

-------------is that something wrong???

by the way,i don't want to use english,but i haven't chinese input method......

请问以下 ruby 和 gem 的安装有没有问题？

wzhang1987 — Sun, 03 Feb 2013 15:35:04 +0800

ubuntu 11.10

~$ gem source -a http://ruby.taobao.org 这个命令后出现如下返回：

ruby-1.9.3-p374/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in require': cannot load such file -- zlib (LoadError) from ruby-1.9.3-p374/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:inrequire'

同样的问题还有：rb:540:in gunzip' rb:239:infetch_path' rb:269:in `load_specs‘等等 ruby 版本是这个 ~$ ruby -v ruby 1.9.3p374 (2013-01-15 revision 38858) [i686-linux]

@ubuntu:~$ gem -v 1.8.25

@ubuntu:~$ rvm -v

rvm 1.18.5 (stable) by Wayne E. Seguin wayneeseguin@gmail.com, Michal Papis mpapis@gmail.com [https://rvm.io/]

请问我的安装有问题吗？需要怎么修正？

ruby 中有 Mixin 这个概念吗？

wzhang1987 — Wed, 30 Jan 2013 16:01:40 +0800

谁能简单说说这种思考的方法？

请问 rails 在哪个平台下学习比较好？

wzhang1987 — Fri, 18 Jan 2013 14:29:34 +0800

准备学习 ruby on rails 请问在 windows 下学习还是 liunx 下学习比较好？

请问 P 这个方法的讲解哪里有？

wzhang1987 — Fri, 18 Jan 2013 13:13:50 +0800

p( [ anObject ]+ ) -> nil For each object, directly writes anObject.inspect followed by the current output record separator to the program's standard output. p bypasses the Ruby I/O libraries. p self produces: main

除了以上的有更详细的方法讲解吗？

类别可以复写吗？

wzhang1987 — Thu, 17 Jan 2013 17:59:03 +0800

ruby 里面方法可以复写。

那么类别呢？以下一类有 3 个方法，我写到 3 个相同类里面效果是一样的吗？如果创建了实例只要是同名类别的方法都能用吗？

class Fruit
  def kind=(k)
    @kind = k
  end

  def kind
    @kind
  end

  def inspect
    "a fruit of the #{@kind} variety"
  end
end

class Fruit
  def kind=(k)
    @kind = k
  end
end

class Fruit
  def kind
    @kind
  end
end

class Fruit
  def inspect
    "a fruit of the #{@kind} variety"
  end
end

这个代表什么？

wzhang1987 — Thu, 17 Jan 2013 11:17:21 +0800

#Proc:0x02bd4d84

请问以上输出信息代表什么？ 1.是进程吗？ 2.是进程的地址吗？ 3.该地址可以记录多个数据吗？

简单定义求解释

wzhang1987 — Tue, 15 Jan 2013 20:19:13 +0800

def box contents = nil get = Proc.new {contents} set = Proc.new {|n| contents = n} return get, set end

请问以上定义 BOX 里面 get 和 set 分别是什么作用，如果 return 里面 get 和 set 顺序对调会产生什么变化呢？

请教变量共享问题

wzhang1987 — Tue, 15 Jan 2013 18:05:09 +0800

def box contents = nil get = Proc.new {contents} set = Proc.new {|n| contents = n} return get, set end

reader, writer = box puts reader.call #nil puts writer.call(2) #2 puts reader.call #2

上面 box 里面为什么要弄个 get 呢？如果 get 和 set 对调下位置下面输出全是 nil？可是如果改成下面这样又有问题：

def box contents = nil #get = Proc.new {contents} set = Proc.new {|n| contents = n} return set end

reader, writer = box puts reader.call #nil puts writer.call(2) #warning: multiple values for a block parameter (0 for 1) puts reader.call #undefined method `call' for nil:NilClass (NoMethodError)

3 个问题求解

请问 trap 是如何使用的？能给个简单的例子最好了！

wzhang1987 — Tue, 15 Jan 2013 15:50:37 +0800

x = “AA”

puts x

trap ("AA") {puts "get"} x.trap ("AA") {puts "get"}

#以上 2 种方式都不行，提示 unsupported signal SIGAA (ArgumentError) 请教各位大侠如何使用 trap？