Visual C++ .NET/Collections/Vector

Материал из .Net Framework эксперт
Версия от 12:05, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Insert value to a vector

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/adapter>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }
    bool operator==(const MyClass^ rhs){
        return (Name->Equals(rhs->Name));
    }
};

int main(array<System::String ^> ^args)
{
    vector<MyClass^> pets; 
    pets.push_back(gcnew MyClass("A")); 
    pets.push_back(gcnew MyClass("B"));
    pets.push_back(gcnew MyClass("C"));
    pets.push_back(gcnew MyClass("D"));
    pets.insert(pets.begin() + 1, gcnew MyClass("J"));
    vector<MyClass^>::const_iterator pet_i;   
    for(pet_i = pets.begin(); pet_i != pets.end(); pet_i++)
        System::Console::Write("{0} ", pet_i->Name); 
    return (0); 
}


Insert value to a vector with Add()

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/adapter>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }
    bool operator==(const MyClass^ rhs){
        return (Name->Equals(rhs->Name));
    }
};

int main(array<System::String ^> ^args)
{
    vector<MyClass^> pets; 
    pets.push_back(gcnew MyClass("A")); 
    pets.push_back(gcnew MyClass("B"));
    pets.push_back(gcnew MyClass("C"));
    pets.push_back(gcnew MyClass("D"));
    IList<MyClass^>^ genericIList = %pets;
    genericIList->Add(gcnew MyClass("Queen"));
    for each (MyClass^ pet in genericIList) 
        System::Console::Write("{0} ", pet->Name); 
    return (0); 
}


pop_back() from a vector

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/adapter>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }
    bool operator==(const MyClass^ rhs){
        return (Name->Equals(rhs->Name));
    }
};

int main(array<System::String ^> ^args)
{
    vector<MyClass^> pets; 
    pets.push_back(gcnew MyClass("A")); 
    pets.push_back(gcnew MyClass("B"));
    pets.push_back(gcnew MyClass("C"));
    pets.push_back(gcnew MyClass("D"));
    vector<MyClass^>^ vMyClass = gcnew vector<MyClass^>();
    vMyClass->pop_back();
    vector<MyClass^>::reverse_iterator pet_ri; 
    for(pet_ri = vMyClass->rbegin(); pet_ri != vMyClass->rend(); pet_ri++)
        System::Console::Write("{0} ", pet_ri->Name); 
    return (0); 
}


Push class into vector

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/functional>
#include <cliext/algorithm>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }    
    bool operator>(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) > 0);
    }
    bool operator==(const MyClass^ rhs)
    {
        return (Name->Equals(rhs->Name));
    }
};
int main(array<System::String ^> ^args)
{
    vector<MyClass^> myCollection; 
    myCollection.push_back(gcnew MyClass("A")); 
    myCollection.push_back(gcnew MyClass("B"));
    myCollection.push_back(gcnew MyClass("C"));
    myCollection.push_back(gcnew MyClass("D"));
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    Console::Write("\n\nreverse(F,L):\n   ");
    reverse(myCollection.begin(), myCollection.end());
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    return 0;
}


Push value to vector

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/adapter>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }
    bool operator==(const MyClass^ rhs){
        return (Name->Equals(rhs->Name));
    }
};

int main(array<System::String ^> ^args)
{
    vector<MyClass^> pets; 
    pets.push_back(gcnew MyClass("A")); 
    pets.push_back(gcnew MyClass("B"));
    pets.push_back(gcnew MyClass("C"));
    pets.push_back(gcnew MyClass("D"));

    return (0); 
}


Reference the start and end of a vector

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/functional>
#include <cliext/algorithm>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }    
    bool operator>(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) > 0);
    }
    bool operator==(const MyClass^ rhs)
    {
        return (Name->Equals(rhs->Name));
    }
};
int main(array<System::String ^> ^args)
{
    vector<MyClass^> myCollection; 
    myCollection.push_back(gcnew MyClass("A")); 
    myCollection.push_back(gcnew MyClass("B"));
    myCollection.push_back(gcnew MyClass("C"));
    myCollection.push_back(gcnew MyClass("D"));
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    Console::Write("\n\nsort(F,L):\n   ");
    sort(myCollection.begin(), myCollection.end());
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    return 0;
}


Reverse a vector

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/functional>
#include <cliext/algorithm>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }    
    bool operator>(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) > 0);
    }
    bool operator==(const MyClass^ rhs)
    {
        return (Name->Equals(rhs->Name));
    }
};
int main(array<System::String ^> ^args)
{
    vector<MyClass^> myCollection; 
    myCollection.push_back(gcnew MyClass("A")); 
    myCollection.push_back(gcnew MyClass("B"));
    myCollection.push_back(gcnew MyClass("C"));
    myCollection.push_back(gcnew MyClass("D"));
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    Console::Write("\n\nreverse(F,L):\n   ");
    reverse(myCollection.begin(), myCollection.end());
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    return 0;
}


Sort a vector

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/functional>
#include <cliext/algorithm>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }    
    bool operator>(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) > 0);
    }
    bool operator==(const MyClass^ rhs)
    {
        return (Name->Equals(rhs->Name));
    }
};
int main(array<System::String ^> ^args)
{
    vector<MyClass^> myCollection; 
    myCollection.push_back(gcnew MyClass("A")); 
    myCollection.push_back(gcnew MyClass("B"));
    myCollection.push_back(gcnew MyClass("C"));
    myCollection.push_back(gcnew MyClass("D"));
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    Console::Write("\n\nsort(F,L):\n   ");
    sort(myCollection.begin(), myCollection.end());
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    return 0;
}


Using for each to loop through a vector

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/functional>
#include <cliext/algorithm>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }    
    bool operator>(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) > 0);
    }
    bool operator==(const MyClass^ rhs)
    {
        return (Name->Equals(rhs->Name));
    }
};
int main(array<System::String ^> ^args)
{
    vector<MyClass^> myCollection; 
    myCollection.push_back(gcnew MyClass("A")); 
    myCollection.push_back(gcnew MyClass("B"));
    myCollection.push_back(gcnew MyClass("C"));
    myCollection.push_back(gcnew MyClass("D"));
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    Console::Write("\n\nreverse(F,L):\n   ");
    reverse(myCollection.begin(), myCollection.end());
    for each (MyClass^ pet in myCollection) 
        Console::Write("{0} ", pet->Name);
    return 0;
}


Vector for loop -- Using const_iterator

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/adapter>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }
    bool operator==(const MyClass^ rhs){
        return (Name->Equals(rhs->Name));
    }
};

int main(array<System::String ^> ^args)
{
    vector<MyClass^> pets; 
    pets.push_back(gcnew MyClass("A")); 
    pets.push_back(gcnew MyClass("B"));
    pets.push_back(gcnew MyClass("C"));
    pets.push_back(gcnew MyClass("D"));
    pets.insert(pets.begin() + 1, gcnew MyClass("J"));
    vector<MyClass^>::const_iterator pet_i;   
    for(pet_i = pets.begin(); pet_i != pets.end(); pet_i++)
        System::Console::Write("{0} ", pet_i->Name); 
    return (0); 
}


Vector for loop -- Using subscript

 
#include "stdafx.h"
#include <cliext/vector>
#include <cliext/adapter>
using namespace System;
using namespace cliext;
using namespace System::Collections::Generic;
ref class MyClass{
public:
    String^ Name;
    MyClass() : Name(String::Empty) { }
    MyClass(String^ name) : Name(name) { }
    MyClass(const MyClass% orig){
        Name = orig.Name; 
    }
    MyClass% operator=(const MyClass% orig){
        if (this != %orig)
            Name = orig.Name;
        return *this;
    }
    ~MyClass() { }
    bool operator<(const MyClass^ rhs){
        return (Name->CompareTo(rhs->Name) < 0);
    }
    bool operator==(const MyClass^ rhs){
        return (Name->Equals(rhs->Name));
    }
};

int main(array<System::String ^> ^args)
{
    vector<MyClass^> pets; 
    pets.push_back(gcnew MyClass("A")); 
    pets.push_back(gcnew MyClass("B"));
    pets.push_back(gcnew MyClass("C"));
    pets.push_back(gcnew MyClass("D"));
    for(int i=0; i < pets.size(); i++)   
        System::Console::Write("{0} ", pets[i]->Name); 
    return (0); 
}
Источник — «http://nfex.ru/index.php?title=Visual_C%2B%2B_.NET/Collections/Vector&oldid=3527»