摘要：http://blog.csdn.net/haoel/article/details/1948051
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posted @ 2013-10-01 21:29
随笔分类 - CPP学习
摘要：CPen* PenOld,PenNew; CBrush* BrushOld,BrushNew; //选用库存黑色画笔 PenOld = (CPen*)pDC->SelectStockObject(BLACK_PEN); //选用库存浅灰色画刷 BrushOld = (CBrush*)pDC->SelectStockObject(LTGRAY_BRUSH); pDC->Rectangle(100,100,300,300); //关联GDI 库存对象 PenNew.CreateStockObject(WHITE_PEN); pDC->S...
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posted @ 2013-05-16 10:26
摘要：惭愧，队列栈集合的容器操作滚瓜烂熟，但是就这个不熟，最近快毕业了，毕业论文上，老师说开静态数组不科学，所以就用这个吧，囧转下别的博客动态创建二维vector数组二维vectorvector<vector <int> > ivec(m ,vector<int>(n)); //m*n的二维vector动态创建m*n的二维vector方法一：vector<vector <int> > ivec;ivec.resize(m);for(int i=0;i<m;i++) ivec[i].resize(n);方法二：vector<vec
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posted @ 2013-05-10 21:13
摘要：View Code [cpp] view plaincopy//适用于正整数 template <class T> inline void scan_d(T &ret) { char c; ret=0; while((c=getchar())<'0'||c>'9'); while(c>='0'&&c<='9') ret=ret*10+(c-'0'),c=getchar(); } ②[cpp] view plaincopy//适用于正负整数 template
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posted @ 2012-04-04 19:38
摘要：注意点：class base{protected://抽象类成员变量要用protected，而用private子类明显不可以调用 double x;public: base(double a){x=a;} virtual void s()=0;//加个const就不对了 virtual void v()=0;};View Code #include<iostream>using namespace std;class base{protected: double x;public: base(double a){x=a;} virtual void s()=0;//加个const就
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posted @ 2011-05-02 19:57
摘要：View Code #include<iostream>#include<cstring>using namespace std;class mystring{public: mystring(char *s); mystring(); ~mystring();//虚构函数用来释放动态内存 void addstring(char *s);//连接两个字符串 void stringup(char *s);//字符串大写换小写 void change(char *s);//改变字符串 void show();//输出字符串private: int len; char *p;
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posted @ 2011-04-17 19:24
摘要：View Code #include<iostream>using namespace std;class Car;//为了使class Boat中可以定义Car类，可以暂时先声明可以引用Car类class Boat{public: Boat(int tBweight=0) { Bweight=tBweight; } friend class Car; friend void getTotalWeight(Car &C,Boat &B);//共同友元函数在每个引用的类都要定义private: int Bweight;};class Car{public: Car(i
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posted @ 2011-04-04 15:56
摘要：View Code #include<iostream>#include<string.h>using namespace std;class student{private: char name[10]; int score;public: char* gan(student &student1,student &student2); friend void disp(student &student1);//友元函数 student(char tname[10]="",int tscore=0)//构造函数 { strcm
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posted @ 2011-04-04 15:18
摘要：要知道，a[100]字符串的首地址与char *a 是不一样的，a[100]字符串的首地址不是指针，char *a就是指针！！！View Code //swap(char *a,char *b)#include<iostream>#include<string.h>using namespace std;void swap(char *a,char *b){ int al,bl,i; al=strlen(a)+1; bl=strlen(b)+1; if(al<bl)al=bl; int temp; for(i=0;i<al;i++) { temp=a[i];
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posted @ 2011-03-08 19:59
