弱弱的请教一个问题,请大家不要嘲笑我
侯捷的《深入浅出MFC》第2版,第一章有一小节叫“消息映射的雏形”。里面是这样写的
定义一个MSGMAP_ENTRY结构
struct MSGMAP_ENTRY{
UINT nMessage;
LONG (*pfn) (HWND, UINT, WPARAM, LPARAM);
};
组织两个数组_messageEntries[].........//消息与处理例程的对照表格
struct MSGMAP_ENTRY _messageEntries[]=
{
WM_CREATE, OnCreate;
WM_PAINT, OnPaint;
WM_SIZE, OnSize,
.......
};这段我就不太明白了,给结构体赋值不是应该这样的么struct MSGMAP_ENTRY _messageEntries[]=
{
{WM_CREATE, OnCreate,}
{WM_PAINT, OnPaint,}
{WM_SIZE, OnSize,}
.......
};大家给我讲讲吧~
侯捷的《深入浅出MFC》第2版,第一章有一小节叫“消息映射的雏形”。里面是这样写的
定义一个MSGMAP_ENTRY结构
struct MSGMAP_ENTRY{
UINT nMessage;
LONG (*pfn) (HWND, UINT, WPARAM, LPARAM);
};
组织两个数组_messageEntries[].........//消息与处理例程的对照表格
struct MSGMAP_ENTRY _messageEntries[]=
{
WM_CREATE, OnCreate;
WM_PAINT, OnPaint;
WM_SIZE, OnSize,
.......
};这段我就不太明白了,给结构体赋值不是应该这样的么struct MSGMAP_ENTRY _messageEntries[]=
{
{WM_CREATE, OnCreate,}
{WM_PAINT, OnPaint,}
{WM_SIZE, OnSize,}
.......
};大家给我讲讲吧~
struct MSGMAP_ENTRY _messageEntries[]=
{
{WM_CREATE, OnCreate},
{WM_PAINT, OnPaint},
{WM_SIZE, OnSize}, // .......
};
#include <iostream>
#include <string>
using namespace std;
int main()
{
struct ma1
{
int a;
string b;
};
struct ma1 ma2={12,"sdfjksd"}; //定义一个结构体
cout<<ma2.a<<ma2.b<<endl;
struct ma1 ma3[]={12,"sdfjksd",13,"hjsdjsdfh",14,"sdfhkj"}; //定义3个结构体,一个结构体数组
for(int i=0;i<3;i++)
cout<<ma3[i].a<<ma3[i].b<<endl;
return 0;
}