C++常用操作函數(shù)

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1、實用文檔C++常用操作函數(shù)載入動態(tài)庫boolLoadDll(){HttpDownDll=LoadLibrary("HTTPDOWNDLL.dll");if(HttpDownDll==NULL){MessageBox(0,"載?入?動ˉ態(tài)?庫a錯洙?誤ó！?","錯洙?誤ó",MB_OK

2、MB_ICONWARNING);FreeLibrary(HttpDownDll);returnfalse;}SendCommand=(SendCommandFunc)GetProcAddress(HttpDownDll,"Send

3、Command");if(SendCommand==NULL){MessageBox(0,"GetProcAddress錯洙?誤ó！?","錯洙?誤ó",MB_OK

4、MB_ICONWARNING);FreeLibrary(HttpDownDll);returnfalse;}returntrue;}卸載動態(tài)庫boolFreeDll(){FreeLibrary(HttpDownDll);SendCommand=NULL;returntrue;}字符串分割std::vectorsplit(st

5、d::stringstr,std::stringpattern){std::string::size_typepos;std::vectorresult;str+=pattern;//擴?展1字?符?串?以?方?便?操ù作痢?intsize=str.size();for(inti=0;i

6、ack(s);i=pos+pattern.size()-1;}}returnresult;}UTF8轉(zhuǎn)GBKvoidUTF8ToGBK(std::string&s){charszOut[256];memset(szOut,0,256);strcpy(szOut,s.c_str());unsignedshort*wszGbk=NULL;char*szGbk=NULL;//長度intlen=MultiByteToWideChar(CP_UTF8,0,(LPCSTR)szOut,-1,NULL,0);wszGbk=ne

7、wunsignedshort[len+1];memset(wszGbk,0,len*2+2);MultiByteToWideChar(CP_UTF8,0,(LPCSTR)szOut,-1,(LPWSTR)wszGbk,len);//長度len=WideCharToMultiByte(CP_ACP,0,(LPWSTR)wszGbk,-1,NULL,0,NULL,NULL);szGbk=newchar[len+1];memset(szGbk,0,len+1);WideCharToMultiByte(CP_ACP,0,

8、(LPWSTR)wszGbk,-1,szGbk,len,NULL,NULL);//szOut=szGbk;//這樣得到的szOut不正確，因為此句意義是將szGbk的首地址賦給szOut，//當delete[]szGbk執(zhí)行后szGbk的內(nèi)存空間將被釋放，此時將得不到szOut的內(nèi)容memset(szOut,'