C＃中的嵌套循环

Question

I'm doing a simple c# exercise. Here's the problem: Write a program called SquareBoard that displays the following n×n (n=5) pattern using two nested for-loops. Here's my code:

Sample output:
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #

Here's my code:

for (int row = 1; row <=5; row++) {
    for (int col = 1;col <row ; col++)
    {
        Console.Write("#");
    }
    Console.WriteLine();
}

But it doe's not work .can anyone help me. thank you..

Answer 1

int n = 5;
for (int row = 1; row <= n; row++) {
    for (int col = 1;col <= n; col++) {
        Console.Write("# ");
    }
    Console.WriteLine();
}

Something like that?

Answer 2

for (int row = 0; row < 5; row++)
{

    for (int col = 0; col < 5; col++)
    {
        Console.Write("# ");
    }
    Console.WriteLine();
}

Answer 3

This code:

col <row 

is causing you problems.

Change it to:

col <=5

and it should work

Answer 4

I think this should work:

int n = 5;
for (int row = 1; row <=n; row++) 
{
    string rowContent = String.Empty;
    for (int col = 1;col <=n; col++)
    {
        rowContent += "# ";
    }
    Console.WriteLine(rowContent);
}

Of course you might want to use a StringBuilder if you are doing this kind of thing a lot.

Answer 5

In the first iteration, you compare col to row , and they are both 1. You check if the one is higher than the other, and the second loop never runs. Rewrite like this:

 for (int row = 1; row <=5; row++) {    
            for (int col = 1;col <= 5 ; col++)
            {
                Console.Write("#");
            }
            Console.WriteLine();
 }

The second iteration needs to run from 1 to 5 every time.

Answer 6

This definitely works:

        for (int i = 1; i <= 5; i++)
        {

            for (int j = 1; j <= 5; j++)
            {
                Console.Write("# ");
            }
            Console.Write("\n");

        }

Answer 7

for(int i=0; i<5 ; i++)

    for(int j=0 ; j <5 ; j++)
    Console.Write("#");

Console.WriteLine();