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_coverImage = [UIImage imageNamed:@"Default.png"];
}

[self.view addSubview:_coverImage];

[UIView beginAnimations:@"FadeOutCover" context:nil];
[UIView setAnimationDuration:0.5f];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(removeAndDeleteCover)];

yuanmai

lvextend -L +5G /dev/ubuntu/data

减少5G

lvresize -L -5G /dev/ubuntu/data 

三、增加swap空间。
    一般swap是内存的2倍，但是如果一不小心在安装时少分了点，那就有点郁闷了。没关系，lvm可以增加swap空间。
   1、free查看swap的卷标
          #free

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:repl-options {:port 10101 :host "0.0.0.0" }

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find . -name "*.elc" -type f | xargs rm -f

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sudo ln -fhsv 1.6.0 /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents
sudo ln -fhsv 1.6.0 Current
sudo ln -fhsv 1.6.0 CurrentJDK

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open [file-name] -a emacs

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user> (zero? 1)
false
user> (zero? 0)
true
user> [0 1 2 0 3]
[0 1 2 0 3]
user> (filter zero? [0 1 2 0 3])
(0 0)
user> (count (filter zero? [0 1 2 0 3]))
2

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{[:input] [:label]}
(h/clone-for [[k v] (:choices q)]
[:input]
(h/set-attr :name (-> q :question-id name)
            :id (name k)
            :value (name k))

[:label]
(h/do->
 (h/set-attr :for (name k))

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user> (use 'net.cgrand.enlive-html)
nil
user> (sniptest "<tr><bb><div></div></bb></tr>"
                [:tr] (clone-for [option-value-map [1]]
                                   [:div] (content "a")))
"<tr><bb><div>a</div></bb></tr>"
user> (sniptest "<tr><b><div></div></b></tr>"
                [:tr] (clone-for [option-value-map [1]]
                                   [:div] (content "a")))
"<tr></tr><b></b><div><b></b></div><b></b>"

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(defn check-item [p id]
  (if-let [item (find-item id)]
    (do (deliver p item)
        nil)
    (status 404 "Item not found")))

(defn check-access [item]
  (when-not (can-user-access? item)
    (status 403 "Go away")))