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SimpleCalculator

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c++ - "Provides no initializer for reference member..."

经过一些谷歌搜索后,我找不到这个问题的答案。如何初始化它,为什么需要初始化?#include"CalculatorController.h"CalculatorController::CalculatorController(SimpleCalculator&aModel,ICalculatorView&aView){\\(thisisthebracketinformingmeoftheerror)fModel=aModel;fView=aView;}标题:#pragmaonce#include"ICalculatorView.h"#include"SimpleCalculator.h