Casablanca对白

(Victor Laszlo comes into Rick's saloon.)
Victor: Mister Blain, I wonder if could talk to you.
Rick: Go ahead!
Victor: Well ,Is there some other place? It's rather confidential ,what I have to say.
Rick:Come up to my office .(They come to Rick's office.)
Victor:You must know it's very important I get out of Casablanca.
Rick: Why you more important than any of the other thousands who are stuck here?
Victor:Whether Victor Laszlor,the man ,gets out is not important at all.But It's my privilege to be one of the leaders of the great movement.You know what I've been dong .You know what it means to the work,to the lives of thousands and thousands of people that I be free to reach America and continue my work.
Rick: I'm not interested in politics and the problems  of the world  are not in my department. I'm a saloon keeper.
Victor: That wasn't always you attitude.
Rick:Wasn't it ?
Victor:My friends of the underground tell me that you have quite a record.You ran guns to Ethiopia.You fought against fascists in Spain.
Rick:what of it ?
Victor:Isn't it strange that you always happen to be fighting on the side of the underdogs?
Rick: Yes,I found that a very expensive hobby too.But then I never was much of a businessman.
Voctor:Are you enough of a businessman to appreciate an offer of a 100,000 francs?
Rick: I appreciate it but I don't accept it .
Victor: I raise it to 200,000 francs.
Rick:My friend ,you could make it a millon francs or three.My answer would still be the same.
Victor:There must be some reason that you won't let me have them.
Rick:There is .I suggest that you ask your wife.
Victor: I beg you pardon?
Rick:I said "ask your wife".
Victor:My wife?
Rick:Yes.
.............



Rick: How did you get in ?
Ilsa:The stairs from the street.
Rick:I told you this morning you could come around,but this is a little ahead of schedule .Well ,won't you sit down?
Ilsa:Richard,I had to see you.
Rick:I'm "Richard" again. We're back in Paris!
Ilsa:Please...
Rick:Your unexpected visit isn't connected by any chance withe the letters of transit? Seems as long as I have those letters ,I'll never be lonely.
Ilsa:Richard ,you can ask for any price you choose,but you must give us those letters.
Rick:I went all through that with your husband.It's no deal.
Ilsa:I know how you feel about me.And I don't blame you.But I must ask you to put your feelings aside for something more important.
Rick:Do I have to hear again what a great man your husband is ,and what an important cause he is fighting for?
Ilsa:It is your cause too. In your own way,you were fighting for the same thing.
Rick: Well, I'm not fighting for any thing any more,except myself.I'm the only cause I'm interested in now.
Ilsa:Richard, we loved each other once.If those days meant anything at all to you....
Rick:I would't bring up Paris, if I were you.It is poor salesmanship.
Ilsa:Please,please listen to me.If you knew really what happended to me ! If you only knew the truth!
Rick:I wouldn't believe you no matter what you told me.You'll say anthing now to get what you want.
Ilsa:You want to feel sorry for yourself,don't you? There is so much you must think of you feelings. With so much at stake, all you think of is your own feelings .One woman has hurt you,and you take revenge on the rest of the world!You are a coward and weak(But as soon as the two words come out ,she is in torment.)No, Richard ,I'm sorry.I'm sorry but you are our last hope.If you don't help Victor,Victor will die in Casablanca.
Rick:What of it ?I'm going to die in Casablanca too.It's a good spot for it .

Casablanca 是一个用于 C++ 开发的现代网络通信库,专注于支持异步操作和跨平台开发。它允许开发者构建基于 RESTful 服务的客户端和服务器端应用程序,并提供对 HTTP、JSON 和其他网络协议的全面支持。以下是使用 Casablanca 进行 C++ 开发的指南: ### 1. 环境设置 在开始之前,需要安装 Casablanca 并配置开发环境。Casablanca 支持 Windows、Linux 和 macOS 平台,并且可以通过包管理器或从源代码编译安装。 - **Windows**: 使用 vcpkg 或通过 Visual Studio 的 NuGet 包管理器安装 Casablanca。 - **Linux/macOS**: 使用包管理器(如 apt-get 或 Homebrew)或者从 GitHub 获取源代码并编译安装。 确保在项目中包含 Casablanca 的头文件,并链接到相应的库文件。 ### 2. 创建 HTTP 客户端 Casablanca 提供了 `http_client` 类,用于发送 HTTP 请求并接收响应。以下是一个简单的示例,展示了如何使用 Casablanca 发送 GET 请求: ```cpp #include <cpprest/http_client.h> #include <cpprest/filestream.h> using namespace web; using namespace web::http; using namespace web::http::client; int main() { // 创建 HTTP 客户端对象 http_client client(U("https://jsonplaceholder.typicode.com/posts/1")); // 发送 GET 请求 client.request(methods::GET).then([](http_response response) { // 处理响应 if (response.status_code() == status_codes::OK) { utility::string_t responseText = response.extract_string().get(); std::wcout << L"Response: " << responseText << std::endl; } else { std::wcout << L"Error: " << response.status_code() << std::endl; } }).wait(); return 0; } ``` ### 3. 处理 JSON 数据 Casablanca 提供了 `json` 类,用于解析和生成 JSON 数据。以下是一个示例,展示了如何解析 JSON 响应: ```cpp #include <cpprest/json.h> // 假设 responseText 是上一步中获取的 JSON 字符串 json::value root = json::value::parse(responseText); json::value title = root[U("title")]; std::wcout << L"Title: " << title.as_string() << std::endl; ``` ### 4. 创建 HTTP 服务器 Casablanca 还支持创建 HTTP 服务器。使用 `http_listener` 类可以监听 HTTP 请求并处理它们。以下是一个简单的 HTTP 服务器示例: ```cpp #include <cpprest/http_listener.h> #include <cpprest/json.h> using namespace web; using namespace web::http; using namespace web::http::experimental::listener; int main() { // 创建 HTTP 服务器 http_listener listener(U("http://localhost:8080")); // 处理 GET 请求 listener.support([](http_request request) { if (request.method() == methods::GET) { json::value responseJson; responseJson[U("message")] = json::value::string(U("Hello, World!")); request.reply(status_codes::OK, responseJson); } else { request.reply(status_codes::MethodNotAllowed); } }); // 启动服务器 listener.open().then([]() { std::wcout << L"Server is running on http://localhost:8080" << std::endl; }).wait(); // 保持服务器运行 std::cin.get(); listener.close().wait(); return 0; } ``` ### 5. 异步编程 Casablanca 的核心特性之一是其对异步编程的支持。通过使用 `pplx::task` 和 `then` 方法,可以轻松地编写非阻塞代码。例如,以下代码展示了如何使用异步操作处理 HTTP 请求: ```cpp #include <cpprest/pplx/pplxtasks.h> // 异步处理 HTTP 请求 pplx::task<http_response> sendRequestAsync(http_client& client) { return client.request(methods::GET); } int main() { http_client client(U("https://jsonplaceholder.typicode.com/posts/1")); sendRequestAsync(client).then([](http_response response) { if (response.status_code() == status_codes::OK) { utility::string_t responseText = response.extract_string().get(); std::wcout << L"Async Response: " << responseText << std::endl; } else { std::wcout << L"Async Error: " << response.status_code() << std::endl; } }).wait(); return 0; } ``` ### 6. 性能优化与调试 在使用 Casablanca 进行开发时,需要注意以下几点以优化性能和调试: - **异步操作**: 充分利用异步操作以避免阻塞主线程,从而提高应用程序的响应速度。 - **资源管理**: 确保正确释放网络资源,尤其是在处理大量并发请求时。 - **日志记录**: 使用 Casablanca 提供的日志功能或集成第三方日志库来跟踪请求和响应。 通过以上步骤,可以有效地使用 Casablanca 进行 C++ 开发,构建高性能的网络应用程序。
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