深圳-华为C++.doc

C+/MFC试题一填空题(26分)1 WIN32平台下，sizeof(short) = _，sizeof(int) = _，sizeof(long) = _。(3分)2请给出如下程序的结果(2分)int a = 3;int b = a 3;a = _，b = _。3请给出如下程序的结果(2分)int aaa = 0x01;htonl(aaa) = _。4请给出如下程序的结果(2分)#define MAX_NUM 100+200int nTemp = MAX_NUM*10;则Temp = _。5请给出如下程序的结果(3 分)char szTemp1000 = ;int nLen1 = sizeof(szTemp);int nLen2 = strlen(szTemp);strcpy(szTemp, abc);int nLen3 = sizeof(szTemp);int nLen4 = strlen(szTemp);int nTemp100;int *pTemp = nTemp;int nLen5 = sizeof(pTemp);char szResult200 = ;sprintf(szResult, %d,%d,%d,%d,%02d., nLen1, nLen2, nLen3, nLen4, nLen5);则szResult = _。6MFC中，大部分类是从哪个类继承而来（CCmdTarget、CObject、CWinApp、CWnd）？(2分)_7内存是进程范围or线程范围；_CPU调度时，针对进程or线程；_函数调用堆栈，针对进程or线程。_(3分)8调用函数bbb后，输出是什么(4分)void ccc(int x)char szTemp10 = ;x = 2;sprintf(szTemp, %d, x);afxDump szTemp;if(x = 3)int x = 4;sprintf(szTemp, %d, x);afxDump szTemp;sprintf(szTemp, %d, x);afxDump szTemp;void bbb()char szTemp10 = ;int x = 7;ccc(x);sprintf(szTemp, %d, x);afxDump m_hThread, INFINITE);有何作用。(4分)6. _stdcall、_cdecl、_pascal在什么方面有所不同。(4分)7请把下述代码加上异常处理。(6分)int MyWriteFile(CString strFileName, CString strText)int nRet = 0;CFile myFile;myFile.Open(strFileName, CFile:modeWrite|CFile:shareExclusive|CFile:modeCreate, NULL);int nLen = strText.GetLength();myFile.Write(char*)(LPCSTR)strText, nLen);myFile.Close();return nRet;8请解释“func”为何种类型，这种类型的作用什么，变量ttt 的值是多少？(6分)typedef int (*func)(int, int*);int xxx(int a, int *p)return a + *p;int dowork(func aaa, int bbb, int *ccc)return aaa(bbb, ccc);int sss = 4;int ttt = dowork(&xxx, 3, &sss);9请问下述代码中: int operator+(）起什么作用？this是什么？ccc 的值最终为多少？(6分)class Fruitpublic:Fruit()weight = 2;Fruit(int w)weight = w;int operator+(Fruit f)return this-weight * f.weight;private:int weight;Fruit aaa;Fruit bbb(4);int ccc = aaa + bbb;10.请解释下面代码采用了何种C+特性（C语言不具备），作用是什么？(6分)templateT sum(T a, T b)return (a + b);11请解释aaa.h中下面代码的功能(5分)#if !defined(AFX_MYSUDU_H_9B952BEA_A051_4026_B4E5_0598A39D2DA4_INCLUDED_)#define AFX_MYSUDU_H_9B952BEA_A051_4026_B4E5_0598A39D2DA4_INCLUDED_. .#endif12CMemoryState主要功能是什么(5分)13请阅读下述代码，写出程序执行的结果（6分）#include using namespace std;class CBase public: virtual void print() cout base endl; void DoPrint() print(); ;class CChild1: public CBasepublic: virtual void print() cout child1 endl; ;class CChild2: public CBasepublic: virtual void print() cout child2 DoPrint();void main() CBase* base = new CBase(); CChild1* child1 = new CChild1(); CChild2* child2 = new CChild