• دستور break در ++C
    #1
    Note 
    از این دستور برای متوقف کردن اجرای حلقه استفاده میشه.

    [CPP]#include <iostream>
    using namespace std;

    //---------------------------------------------------------------------------

    int main(int argc, char* argv[])
    {
    char Letter = 'd';

    while( Letter <= 'n' )
    {
    cout << "Letter " << Letter << endl;
    if( Letter == 'k' )
    break;
    Letter++;
    }

    return 0;
    }

    The break statement can be used in a do�while loop in the same way.

    In a for statement, the break can stop the counting when a particular condition becomes true.
    For example, the following program is supposed to count from 0 to 12,
    but the programmer wants it to stop as soon as it detects the number 5:

    #include <iostream>
    using namespace std;

    //---------------------------------------------------------------------------

    int main(int argc, char* argv[])
    {
    for(int Count = 0; Count <= 12; ++Count)
    {
    cout << "Count " << Count << endl;
    if( Count == 5 )
    break;
    }

    return 0;
    }

    The break statement is typically used to handle the cases in a switch statement where you usually may want the program to ignore invalid cases.

    Consider a program used to request a number from 1 to 3, a better version that involves a break in each case would allow the switch to stop once the right case is found. Here is a working version of that program:

    #include <iostream>
    using namespace std;

    //---------------------------------------------------------------------------

    int main(int argc, char* argv[])
    {
    int Number;

    cout << "Type a number between 1 and 3: ";
    cin >> Number;

    switch (Number)
    {
    case 1:
    cout << "\nYou typed 1.";
    break;
    case 2:
    cout << "\nYou typed 2.";
    break;
    case 3:
    cout << "\nYou typed 3.";
    break;
    default:
    cout << endl << Number << " is out of the requested range.";
    }

    return 0;
    }
    [/CPP]

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