*结构化异常处理 之 终止处理

/******************************************/////Description: 结构化异常处理 之 终止处理// Author: gwy///******************************************/#include <iostream>#include <windows.h>using namespace std;////////////////////////////////////////自动进入__finally AbnormalTermination()//////////////////////////////////////int Fun(){DWORD dwTemp = 0;__try{dwTemp = 10;}__finally{dwTemp = 100;if(FALSE == AbnormalTermination())cout<<"自然进入的__finally"<<endl;}return dwTemp;}////////////////////////////////////////return//////////////////////////////////////int Fun1(){DWORD dwTemp = 0;__try{dwTemp = 10;return dwTemp;}__finally{dwTemp = 100;//return dwTemp;}dwTemp = 1000;return dwTemp;}////////////////////////////////////////goto AbnormalTermination()//////////////////////////////////////int Fun2(){DWORD dwTemp = 0;__try{dwTemp = 10;goto RtnValue;}__finally{dwTemp = 100;if(AbnormalTermination())cout<<"通过return,goto,continue,break等进入"<<endl;}dwTemp = 1000;RtnValue:return dwTemp;}////////////////////////////////////////continue break//////////////////////////////////////int Fun3(){DWORD dwTemp = 0;while(dwTemp<10){__try{if(2 == dwTemp)continue;if(3 == dwTemp)break;}__finally{dwTemp++;}}return dwTemp;}////////////////////////////////////////__leave//////////////////////////////////////bool Fun4(){HANDLE hFile = INVALID_HANDLE_VALUE;PVOID pvBuf = NULL;bool bFunctionOK = false;__try{hFile = CreateFile("test.txt",GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,0,NULL);if(INVALID_HANDLE_VALUE == hFile)__leave;pvBuf = VirtualAlloc(NULL,1024,MEM_COMMIT,PAGE_READWRITE);if(NULL == pvBuf)__leave;DWORD dwNumBytesRead = 0;bool fOK = true;fOK = ReadFile(hFile,pvBuf,1024,&dwNumBytesRead,NULL);if(!fOK || (0 == dwNumBytesRead))__leave;cout<<(char*)pvBuf<<endl;bFunctionOK = true;}__finally{if(NULL != pvBuf)VirtualFree(pvBuf,1024,MEM_RELEASE|MEM_DECOMMIT);if(INVALID_HANDLE_VALUE != hFile)CloseHandle(hFile);}return bFunctionOK;}////////////////////////////////////////main//////////////////////////////////////void main(int argc,TCHAR*argv[]){ cout<<Fun()<<endl<<endl; cout<<Fun1()<<endl<<endl; cout<<Fun2()<<endl<<endl; cout<<Fun3()<<endl<<endl; if(Fun4()) cout<<"Read success..."<<endl; else cout<<"Read fail..."<<endl;}