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in `require': no such file to load -- watir (LoadError)
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http://bits.netbeans.org/download/trunk/nightly/2009-03-17_02-01-11/
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advidea.bat Îļþ£¬¼´¿ÉÍê³É°²×° ruby watir ×Ô¶¯»¯¿ò¼Ü¡£
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   require 'watir'
   test_site = 'http://www.advidea.cn/'
 
   # open the IE browser
   ie = Watir::IE.new
   # print some comments
   puts "## Beginning of test: advidea"
   puts "  "
 
   puts "Step 1: go to the test site: " + test_site
   ie.goto(test_site)
   puts "  Action: entered " + test_site + " in the address bar."
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Install Cassandra with Ruby 1.9.1 on Windows

To get it done is not easy. I spent a whole day to figure out the various compatibility issues along the way out.
Now there still might be potential issues, but it works by my rough test.
Step 1: Install Apache Cassandra
  You may know that the Ruby gem cassandra will do it for you.
  ......

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  Àý×Ó£º
      $ irb
      >> exec 'echo " ......

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   ¿ÉÓÿ⣺getoptlong.rs£¬ optionparser
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2. Êä³ö²ÎÊý˵Ã÷£¬²»Ðèµ¥¶Àά»¤
3. ¿ÉÑ¡²ÎÊýºÍÃüÁî²ÎÊýÃèÊö¼ò½à
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5. ......

rubyºÃÏñÓÐÖ¸Õë°¡£¡£¡£¡

b = "123"
a = b
b.gsub!(/2/,"")
puts a
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b = "123"
a = "#{b}"
b.gsub!(/2/,"")
puts a
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