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一个如下形式的命令: $ cmd1 args1 | xargs cmd2 args2 相当于把 $ cmd1 args1 返回的结果放到 $ cmd2 args2 之后,作为参数传递给cmd2。 阅读全文
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创建一个Terminal窗口:Ctrl+Alt+t 窗口最大化:Ctrl+Win+↑ 窗口还原:Ctrl+Win+↓ 创建一个Tab:Ctrl+Shift+t 退出一个Tab:exit 另外一种常见的操作习惯是在Terminal的一个Tab内部,通过Tmux分屏。常见的快捷键如下: 启动tmux:t 阅读全文
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打包tar zcvf filename.tar.gz file1 file2 解包 tar zxvf filename.tar.gz 阅读全文
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#include <functional> #include <iostream> #include <memory> #include <unordered_map> class AbstractModule { public: virtual void show() = 0; }; class 阅读全文
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#include <iostream> #include <memory> class Context { public: std::string getData() { return data_; } void setData(std::string data) { this->data_ = d 阅读全文
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#include <iostream> #include <memory> class ConcreteComponent1; class ConcreteComponent2; class Visitor { public: virtual void visitconcretecomponent1 阅读全文
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#include <iostream> #include <memory> class AbstractClass { public: void show() { op1(); op2(); op3(); hook(); } protected: void op1() { std::cout << 阅读全文
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#include <iostream> #include <memory> class Strategy { public: virtual void show() = 0; }; class Context { public: void setStrategy(std::shared_ptr<St 阅读全文
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#include <iostream> #include <list> #include <memory> class AbstractObserver { public: virtual void update(std::string msg) = 0; }; class AbstractSubj 阅读全文
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#include <iostream> #include <memory> class Context; class State { public: virtual void handle1(Context *c) = 0; virtual void handle2(Context *c) = 0; 阅读全文