chinahnwqf的博客

//第14章第1题 #ifndef WINE_H_ #define WINE_H_ #include #include #include //#include using std::cin; using std::cout; using std::endl; using std::string; template class Pair { private: T1 a; T2 b; publ

程序1： void  main()   {        char  *p=NULL;        myMalloc(p);    //这里的p实际还是NULL,p的值没有改变，为什么？        if(p)  free(p);   }  void  myMalloc(char  *s)  //我想在函数中分配内存,再返回   {        s=(char  *

//第13章 13.14 #ifndef STACK_H #define STACK_H #include using std::ostream; using std::istream; class baseDMA { private: char *label; int rating; public: baseDMA(const char *l = "null", int r = 0);

//第12章第1题 #ifndef STACK_H #define STACK_H #define _CRT_SECURE_NO_WARNINGS class Cow { private: char name[20]; char *hobby; double weight; public: Cow(); Cow(const char *nm, const char * ho, doubl

#include #include //第六章习题 using namespace std; int main() { char ch; cin.get(ch); while (ch != '@') { if (isalpha(ch)) { if (islower(ch)) cout << char(ch - 32); else if (isupper(ch))

第七章#include #include //第七章 using namespace std; double aver(const int *x, const int *y); int main() { int x, y; cout << "Please enter two figures:"; cin >> x >> y; double res = aver(&x, &y); co

//第12章程序12.4，5，6. #ifndef STRING1_H #define STRING1_H #include using std::ostream; using std::istream; class String { private: char *str; int len; static int num_strings; static const int CINLIM

C++primer plus 课后习题答案（自己写的，希望对刚入门的童鞋有帮助！！！）

#ifndef GOLF_H_ #define GOLF_H_ const int len = 40; struct golf { char fullname[len]; int handicap; }; void setgolf(golf &g, const char* name, int hc); int setgolf(golf &g); void h

//第十章第一题 #ifndef GOLF_H_ #define GOLF_H_ #include<string> #include<iostream>using std::string; class BankCount {private: string name; string account; unsigned long deposit; public:

#ifndef VECTOR_H_ #define VECTOR_H_ #include //第11章 namespace VECTOR { class Vector { public: enum Mode {RECT,POL}; private: double x; double y; double mag; double ang; Mode mode;

#include #include //第四章1 using namespace std; int main() { int i, j,sum=0; cout << "请输入数据" << endl; cin >> i >> j; for (int k = i; k <=j; k++) sum += k; cout << "结果是" << sum << endl; system("p

#include #include //第八章 using namespace std; void showstr(char *str, int n = 0); int main() { char *p = "I am a boy！"; showstr(p); for (int i = 0; i < 3; i++) { cout << i << ":"; showstr(p, i)