内回路的表达

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// Loop through every number between 1 and 50
int iii = 1;
while (iii <= 50)
{
    // print the number
    cout << iii << " ";
 
    // if the loop variable is divisible by 10, print a newline
    if (iii % 10 == 0)
        cout << endl;
 
    // increment the loop counter
    iii++;
}

它也可以嵌套循环内循环的。在下面的例子中，内环和外环的每一个都有自己的专柜。然而，请注意，内回路的表达，利用外环的计数器和！

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// Loop between 1 and 5
int iii=1;
while (iii<=5)
{
    // loop between 1 and iii
    int jjj = 1;
    while (jjj <= iii)
        cout << jjj++;
 
    // print a newline at the end of each row
    cout << endl;
    iii++;
}
This program prints: