pure virtual function call,vb中用keybd

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pure virtual function call,vb中用keybd?

经测试成功实现,不过不同键盘不同系统可能有所区别,需要的话可以修改注释的那行keybd_eventasc("["),MapVirtualKey(asc("["),0),0,0不过我的改了不行,变成windows键了,所以看情况吧OptionExplicitPrivateDeclareSubkeybd_eventLib"user32"_(ByValbVkAsByte,ByValScanAsByte,ByValdwFlagsAsLong,ByValdwExtraInfoAsLong)PrivateConstVK_OEM_4AsLong=&HDBPrivateDeclareFunctionMapVirtualKeyLib"user32"_Alias"MapVirtualKeyA"_(ByValwCodeAsLong,_ByValwMapTypeAsLong)_AsLongPrivateSubForm_Load()Timer1.Interval=1000EndSubPrivateSubTimer1_Timer()keybd_eventVK_OEM_4,MapVirtualKey(VK_OEM_4,0),0,0'模拟按下"["键,此处可以改为ascll码EndSub

pure virtual function call,vb中用keybd

的析构函数为什么没有参数?

因为没说C++哪年的标准,姑且就拿老一点的C++ 03标准来讲吧。

C++ 03 Specification的第12.4.1节有定义析构函数的语法: A special declarator syntax using an optional function-specifier (7.1.2) followed by ~ followed by the destructor’s class name followed by an empty parameter list is used to declare the destructor in a class definition. 翻译过来大致就是说 析构函数的长相是 function-specifier ~类名(). 其中function-specifier可以是下列三者: inline virtual explicit

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