方式:
#include <algorithm>
using namespace std;
2.将实现文件改名为.mm 告诉XCode启用gcc...
示例:
#include <iostream>
#include <vector>
#include <list>
#include <set>
#include <map>
#include <string>
#include <iterator>
#include <algorithm>
#include <functional>
using namespace std;
//函数重载
void test(int first ,int second)
{
NSLog(@"test_int_int called!");
}
void test(int first,float second)
{
NSLog(@"test_int_float called!");
}
//模板
template <class T>
void test(T parameter)
{
NSLog(@"template fun called!");
}
//结构与运算符重载
struct myNum
{
int num;
};
int operator+(myNum first , myNum second)
{
return first.num+second.num;
}
//类的使用
class CPoint {
private:
int x,y;
public:
//构造与析构函数
CPoint(int x,int y);
CPoint(const CPoint& pt);
~CPoint(){NSLog(@"destruction fun called");}
//属性与析构
void setX(int x){this->x=x;}
void setY(int y){this->y=y;}
int getX(){return x;}
int getY(){return y;}
//输出
void outPut();
friend ostream& operator<<( ostream & out, CPoint & target);
//算符重载
CPoint operator+(CPoint &target);
CPoint operator-(CPoint &target);
void operator+=(CPoint &target);
void operator-=(CPoint &target);
};
//类方法实现部分
CPoint::CPoint(int x,int y)
{
this->x=x;
this->y=y;
}
CPoint::CPoint(const CPoint& pt)
{
x=pt.x;
y=pt.y;
}
CPoint CPoint::operator+(CPoint &target)
{
return CPoint(x+target.getX(),y+target.getY());
}
CPoint CPoint::operator-(CPoint &target)
{
return CPoint(x+target.getX(),y+target.getY());
}
void CPoint::operator+=(CPoint &target)
{
x+=target.getX();
y+=target.getY();
}
void CPoint::operator-=(CPoint &target)
{
x-=target.getX();
y-=target.getY();
}
void CPoint::outPut()
{
cout<<"("<<x<<","<<y<<")"<<endl;
}
//友无函数实现
ostream& operator<<( ostream & out, CPoint & target)
{
out<<"("<<target.x<<","<<target.y<<")"<<endl;
return out;
}
//控制台练习 for 标准C/C++
-(void)consoleStudyStandC_CPP
{
//1.
//函数重载练习
test(1,1);
test(1,1.5f);
//2.
//模板函数练习
test(1);
//3.
{
//结构及运算符重载示例
cout<<"结构与算符重载的使用:\n";
myNum num1,num2;
num1.num=3;
num2.num=2;
cout<<num1+num2<<endl;
}
//4.
{
//自定义类的使用:
cout<<"自定义类CPoint的使用...\n";
CPoint pt1(10,10);
pt1.outPut();
pt1.setX(20);
pt1.setY(20);
cout<<pt1;
CPoint pt2(CPoint(30,30));
CPoint temp=pt1+pt2;
cout<<temp<<endl;
}
//5.
{
//标准string使用
cout<<"string 的使用...\n";
string str="zhangyuntao in 2010.8.12 ";
str+="hehe -----张运涛\n";
cout<<str;
cout<<"使用c_str...\n";
cout<<str.c_str();
//stringWithUTF8String:
//Returns a string created by copying the data from a given C array of UTF8-encoded bytes.
cout<<"从string转成NSString:";
NSLog( [NSString stringWithUTF8String:str.c_str()] );
//cocoa Foundational NSString使用:
NSString *istr=[NSString stringWithString:@"zhangyuntao 张运涛."];
str=[istr cStringUsingEncoding:NSUTF8StringEncoding];
cout<<"从NSString转成string: "<<str<<endl;
cout<<endl;
}
//6.
{
cout<<"vector 一般用法:"<<endl;
//vector容器
vector<int> col;
for(int i=0;i<10;i++)
col.push_back(rand()%100);
//输出容器元素
for(int j=0;j<10;j++)
NSLog(@"%d",col[j]);
//使用C++标准输出流来输出容器元素
for(int k=0;k<10;k++)
cout<<col[k]<<" ";
cout<<endl;
//标准sort算法的使用
NSLog(@"After sorting ...:\n");
sort(col.begin(),col.end());
//迭代器的使用
vector<int>::iterator p;
for(p=col.begin();p!=col.end();p++)
NSLog(@"%d",*p);
//标准find算法的使用
p=find(col.begin(), col.end(), 20);
p!=col.end() ? NSLog(@"The num 20 is in the vector") :NSLog(@"The num 20 is not in the vector");
cout<<endl;
}
{
//用vector构建二维数组
vector< vector<int> > col2;
for(int i=0;i<10;i++)
{
vector<int> temp;
for(int j=0;j<10;j++)
temp.push_back(rand()%90+10);
//用函数对象来进行排序
sort(temp.begin(),temp.end(),greater<int>());
col2.push_back(temp);
}
//输出
cout<<"vector 二维数组的使用:\n";
for(int k=0;k<10;k++)
copy(col2[k].begin(), col2[k].end(),ostream_iterator<int>(cout," ")),cout<<"\n";
cout<<endl;
}
//7.
//list使用
{
list<int> col;
for(int i=0;i<20;i++)
col.push_back(rand()%30);
col.sort();
col.erase(unique(col.begin(),col.end()) , col.end());
cout<<"list 容器使用:\n";
cout<<"after sort and unique, there is"<<col.size()<<" elements in the list\n";
copy(col.begin(), col.end(),ostream_iterator<int>(cout," "));
cout<<endl<<endl;
}
//8.
//set使用
{
set<int> col;
for(int i=0;i<10;i++) col.insert(rand()%90+10);
cout<<"Set 容器使用:\n";
copy(col.begin(), col.end(),ostream_iterator<int>(cout," "));
cout<<endl<<endl;
}
//9.
//map使用:
{
map<int,string> col;
col[1]="iPod";
col[2]="iPhone";
col[3]="iTouch";
cout<<"map 容器使用:\n";
for(map<int,string>::iterator p=col.begin();p!=col.end();p++)
cout<<"("<<p->first<<","<<p->second<<")"<<endl;
cout<<endl;
}
//10.
//文件读写操作
{
ofstream fout;
fout.open("1.txt");
//默认目录为根目录,非当前程序目录,切记!
for(int i=0;i<10;i++)
fout<<i<<" ";
fout.close();
cout<<"Write to file succeed!"<<endl;
ifstream fin;
fin.open("1.txt");
int num;
while(fin>>num)
cout<<num<<" ";
cout<<endl<<"Read finished!"<<endl;
fin.close();
}
}
//程序运行结果:
2010-08-12 11:55:09.102 test[2550:207] test_int_int called!
2010-08-12 11:55:09.106 test[2550:207] test_int_float called!
2010-08-12 11:55:09.108 test[2550:207] template fun called!
结构与算符重载的使用:
5
自定义类CPoint的使用...
(10,10)
(20,20)
(50,50)
2010-08-12 11:55:09.113 test[2550:207] destruction fun called
2010-08-12 11:55:09.115 test[2550:207] destruction fun called
2010-08-12 11:55:09.117 test[2550:207] destruction fun called
string 的使用...
zhangyuntao in 2010.8.12 hehe -----张运涛
使用c_str...
zhangyuntao in 2010.8.12 hehe -----张运涛
从string转成NSString:2010-08-12 11:55:09.119 test[2550:207] zhangyuntao in 2010.8.12 hehe -----张运涛
从NSString转成string: zhangyuntao 张运涛.
vector 一般用法:
2010-08-12 11:55:09.122 test[2550:207] 53
2010-08-12 11:55:09.124 test[2550:207] 29
2010-08-12 11:55:09.126 test[2550:207] 97
2010-08-12 11:55:09.128 test[2550:207] 85
2010-08-12 11:55:09.130 test[2550:207] 62
2010-08-12 11:55:09.132 test[2550:207] 76
2010-08-12 11:55:09.134 test[2550:207] 13
2010-08-12 11:55:09.136 test[2550:207] 93
2010-08-12 11:55:09.138 test[2550:207] 89
2010-08-12 11:55:09.140 test[2550:207] 80
53 29 97 85 62 76 13 93 89 80
2010-08-12 11:55:09.143 test[2550:207] After sorting ...:
2010-08-12 11:55:09.145 test[2550:207] 13
2010-08-12 11:55:09.147 test[2550:207] 29
2010-08-12 11:55:09.149 test[2550:207] 53
2010-08-12 11:55:09.151 test[2550:207] 62
2010-08-12 11:55:09.153 test[2550:207] 76
2010-08-12 11:55:09.155 test[2550:207] 80
2010-08-12 11:55:09.157 test[2550:207] 85
2010-08-12 11:55:09.159 test[2550:207] 89
2010-08-12 11:55:09.161 test[2550:207] 93
2010-08-12 11:55:09.163 test[2550:207] 97
2010-08-12 11:55:09.165 test[2550:207] The num 20 is not in the vector
vector 二维数组的使用:
87 84 75 75 73 45 42 41 22 18
97 87 80 57 57 49 46 35 17 15
88 87 78 73 59 39 34 32 20 13
87 81 66 61 54 54 53 27 22 14
95 90 77 63 57 41 36 29 15 13
99 83 80 76 74 66 47 43 27 11
97 94 80 68 61 47 36 19 18 15
67 57 51 47 45 40 36 35 28 16
97 82 79 76 61 59 54 17 11 10
82 78 77 46 38 31 24 23 17 15
list 容器使用:
after sort and unique, there is14 elements in the list
3 6 9 10 11 14 15 16 17 18 21 22 24 28
Set 容器使用:
21 29 31 35 45 61 64 80 86 97
map 容器使用:
(1,iPod)
(2,iPhone)
(3,iTouch)
Write to file succeed!
0 1 2 3 4 5 6 7 8 9
Read finished!
2010-08-12 11:55:09.183 test[2550:207] DrawRect
Terminating in response to SpringBoard's termination.
[Session started at 2010-08-12 11:59:01 +0800.]
2010-08-12 11:59:09.099 test[2564:207] test_int_int called!
2010-08-12 11:59:09.103 test[2564:207] test_int_float called!
2010-08-12 11:59:09.105 test[2564:207] template fun called!
结构与算符重载的使用:
5
自定义类CPoint的使用...
(10,10)
(20,20)
(50,50)
2010-08-12 11:59:09.108 test[2564:207] destruction fun called
2010-08-12 11:59:09.110 test[2564:207] destruction fun called
2010-08-12 11:59:09.112 test[2564:207] destruction fun called
string 的使用...
zhangyuntao in 2010.8.12 hehe -----张运涛
使用c_str...
zhangyuntao in 2010.8.12 hehe -----张运涛
从string转成NSString:2010-08-12 11:59:09.114 test[2564:207] zhangyuntao in 2010.8.12 hehe -----张运涛
从NSString转成string: zhangyuntao 张运涛.
vector 一般用法:
2010-08-12 11:59:09.116 test[2564:207] 33
2010-08-12 11:59:09.118 test[2564:207] 85
2010-08-12 11:59:09.120 test[2564:207] 10
2010-08-12 11:59:09.122 test[2564:207] 35
2010-08-12 11:59:09.123 test[2564:207] 46
2010-08-12 11:59:09.125 test[2564:207] 65
2010-08-12 11:59:09.127 test[2564:207] 56
2010-08-12 11:59:09.129 test[2564:207] 52
2010-08-12 11:59:09.131 test[2564:207] 48
2010-08-12 11:59:09.133 test[2564:207] 65
33 85 10 35 46 65 56 52 48 65
2010-08-12 11:59:09.135 test[2564:207] After sorting ...:
2010-08-12 11:59:09.137 test[2564:207] 10
2010-08-12 11:59:09.139 test[2564:207] 33
2010-08-12 11:59:09.141 test[2564:207] 35
2010-08-12 11:59:09.143 test[2564:207] 46
2010-08-12 11:59:09.145 test[2564:207] 48
2010-08-12 11:59:09.147 test[2564:207] 52
2010-08-12 11:59:09.149 test[2564:207] 56
2010-08-12 11:59:09.151 test[2564:207] 65
2010-08-12 11:59:09.152 test[2564:207] 65
2010-08-12 11:59:09.154 test[2564:207] 85
2010-08-12 11:59:09.156 test[2564:207] The num 20 is not in the vector
vector 二维数组的使用:
83 79 73 55 47 31 26 16 13 10
98 90 75 70 66 66 61 54 53 18
67 62 48 45 43 34 29 27 26 19
98 79 73 62 52 35 25 20 17 16
95 95 57 53 36 35 29 27 26 12
75 70 68 60 60 57 47 25 15 14
97 94 81 57 24 21 20 19 18 17
99 96 84 81 75 63 54 52 49 18
94 90 85 82 80 75 73 53 44 24
79 77 75 74 46 42 35 26 24 21
list 容器使用:
after sort and unique, there is12 elements in the list
0 2 9 10 11 12 13 17 20 21 28 29
Set 容器使用:
24 32 33 40 47 50 51 85 89 96
map 容器使用:
(1,iPod)
(2,iPhone)
(3,iTouch)
Write to file succeed!
0 1 2 3 4 5 6 7 8 9
Read finished!
