staticintstaticMemberVar;// 动态初始化,在加载时完成 }; intMyClass::staticMemberVar; voidinitializeStaticMemberVar(){ MyClass::staticMemberVar =60;// 初始化发生在加载时 std::cout <<'MyClass::staticMemberVar: '<< MyClass::staticMemberVar << std::endl; } intmain(){ initializeStaticMemberVar(); return0; }
5、在const成员函数中,可以修改static成员变量的值。普通成员变量的值,是不能修改的。 6、static成员函数只能访问static成员,不能访问非static成员,并且static成员函数不能定义为virtual、const、volatile函数。 详细分析如下: 类体中的数据成员的声明前加上static关键字,该数据成员就成为了该类的静态数据成员。 和其他...
2. Define a static member //account.h class Account { public: static double rate(); void applyint(); private: double amount; static double initRate; }; // account.cpp double Account::rate(){ //no need to specify the static again /* do something */ } 3. Initialize the static memb...
// C4356.cpp// compile with: /W2 /EHsc#include<iostream>template<classT>classC{staticintn; };classD:C<int> {};intD::n =0;// C4356// try the following line instead// int C<int>::n = 0;classA{public:staticintn; };classB:publicA {};intB::n =10;// C4356// try the ...
** error C2671: 'FunctionName' : static member functions do not have 'this' pointers**The error occurs when I attempt to call the function needed with 'this' pointer when used like the following:** m_pFunction = new CSomeFunction(this** );...
Compiler error C2205'identifier': cannot initialize extern variables with block scope Compiler error C2206'function': typedef cannot be used for function definition Compiler error C2207'member': a member of a class template cannot acquire a function type ...
C把文件看做是一系列连续的字节,每个字节都被单独读取,这与UNIX环境的文件结构相对应。由于其他环境中可能无法完全对应这个模型,C提供两种文件模式:文本模式和二进制模式。 所有文件的内容都以二进制形式(0或1)存储。但是,如果文件最初使用二进制编码的字符(例如ASCII或Unicode)表示文本(就像C字符串一样),该文件就...
initialize, and then call the object from your app's InitInstance function. Since you only need one COneInstance object for the entire app, and since COneInstance works through your app's main window, it's best to instantiate it is as a global (static) member of your main window class....
(this);//<-Error C2355: 'this' : can only be referenced inside non-static member functions } client->Close(); } catch ( SocketException^ e ) { MessageBox::Show( "SocketException: {0}" + e ); } return 0; } static void runS() { runing(); } bool MyForm::starting(void) { of...
CREATEORREPLACETYPEWM_CONCAT_IMPLASOBJECT(CURR_STRVARCHAR2(32767),STATICFUNCTIONODCIAGGREGATEINITIALIZE(SCTXINOUTWM_CONCAT_IMPL)RETURNNUMBER,MEMBERFUNCTIONODCIAGGREGATEITERATE(SELFINOUTWM_CONCAT_IMPL,P1INVARCHAR2)RETURNNUMBER,MEMBERFUNCTIONODCIAGGREGATETERMINATE(SELFINWM_CONCAT_IMPL,RETURNVALUEOUTVARCHAR2,FLAGSIN...