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我为井字游戏写了一堂课。代码工作正常，但是我不得不在类定义中使用对象名称来调用某些方法，而不是'this'关键字。当方法作为回调传递给addEventListener（）时，会发生问题。      我试图通过使用箭头函数定义方法来解决它。但是JS显示错误“无法读取未定义的属性”错误。  我将如何克服这种情况。 这是类的实现。您可以看到我使用了game.turnClick而不是this.turnClick class TicTacToe{ constructor(aiPlayer,humanP...

当我使用最新的Visual Studio编译以下代码时，编译成功。 class C; class T { public: template<typename A> void f(); private: C* c; }; int main() { T t; t.f<int>(); } template<typename A> void T::f() { this->c->g(); } class C { public: void g() {} ...