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                [TOC] ## QException 用于表示異常的基本信息。它是Qt異常處理機制的一部分,用于在C++代碼中處理異常情況 ## 示例 ``` class MyException : public QException { public: MyException(const QString& message) : message(message) {} void raise() const override { throw* this; } QException* clone() const override { return new MyException(*this); } QString getMessage() const { return message; } private: QString message; }; int main(int argc, char* argv[]) { QCoreApplication app(argc, argv); try { // 模擬拋出異常 throw MyException("Custom exception occurred!"); } catch (const MyException& e) { // 捕獲并處理異常 qDebug() << "Caught exception: " << e.getMessage(); } return app.exec(); } ```
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