<pre class="notranslate">What steps will reproduce the problem?
    <a href="http://play.golang.org/p/bopaXuF1NJ" rel="nofollow">http://play.golang.org/p/bopaXuF1NJ</a>

What is the expected output?
    value
    value
  in this case, 's' always represent the out scope variable, or
    key
  in this case, 's' always represent the inner scope variable

What do you see instead?
    value
    key
  this means, in statement 's, ok := m[s]', 's' represent the inner scope variable sometimes and represent the outer scope variable at other times

Which compiler are you using (5g, 6g, 8g, gccgo)?
    8g

Which operating system are you using?
    windows 7

Which version are you using?  (run 'go version')
    go version go1.1.1 windows/386

Please provide any additional information below.</pre>
<pre class="notranslate">On Win7/amd64:

cd %GOPATH%\src\code.google.com\p\go.talks\2013
present

visit <a href="http://127.0.0.1:3999/advconc" rel="nofollow">http://127.0.0.1:3999/advconc</a>, click `pingpong1.go` link:
404 page not found

pingpong1.go file url:
<a href="http://127.0.0.1:3999/advconc%5cpingpong1.go" rel="nofollow">http://127.0.0.1:3999/advconc%5cpingpong1.go</a>

we should use `/` instead of `%5c` on Windows(`%5c` is `\`).</pre>