显示二进制数三角形的正确代码????? [英] correct codes for displaying binary numbers triangle?????

问题描述

我正在尝试写一个C sharp程序来显示这样的东西



1

01

101

0101但是我很难做到这一点。到目前为止我只能这样显示



1

10

101

1010.我知道这对你们很简单..我需要帮助......任何人???在此先感谢...

这是我到目前为止的编码..........

I am trying to write a C sharp program to display something like this

1
01
101
0101 but i'm having trouble doing that.So far i can display only like this

1
10
101
1010. i know its simple for you guys..i need help...anyone??? thanks in advance...
Here is my coding so far..........

static void Main(string[] args)
{
    String input;
    int i, j, ran;
    Console.WriteLine("Enter the Range:");
    input = Console.ReadLine();
    ran = Convert.ToInt16(input);

    for (i = 1; i <= ran; i++)
    {
        for (j = 1; j <= i; j++)
        {
            if (j % 2 == 0)
            {
                Console.Write("0 ");
            }
            else
            {
                Console.Write("1 ");
            }
        }
        Console.WriteLine();
    }
    Console.Read();
}

[已添加代码格式]

[Added code formatting]

推荐答案

由于您的代码有效很好地除了1和0向后退出，用j = i开始内循环然后每次减少1，停在1？

ie

Since you code works nicely except that the 1's and 0's come out backwards, howabout starting the inner loop with j = i and reduce it by 1 each time, stopping at 1?
ie

for (j = i; j >= 1 ; j--)
{
      if (j % 2 == 0)
      {
            Console.Write("0 ");
      }
      else
      {
            Console.Write("1 ");
      }
}

我没有尝试过，只是一个想法。 :)



转换为代码块以保留格式[/ edit]

干杯！ :)阿里[/ edit]

I haven't tried it, just an idea for you. :)

[edit]Converted to code block to preserve formatting[/edit]
[edit]Cheers! :) Ali[/edit]

艾莉森打败了我！只是她的解决方案的一个小改进 - 你不需要if条件：

Alison beat me to it! just a small improvement to her solution - you don't need the if condition:

for (int j = i; j > 0; j--)
    {
    Console.Write("{0} ", j & 1);
    }
Console.WriteLine();

您实际上不需要循环的内部。所有发生的事情是前一个字符串前面有一个0或1。所以你可以这样做。

You don't actually need the inner for loop. All that is happening is that a 0 or a 1 is being prepended to the previous string. So you can do this.

StringBuilder sb= new StringBuilder();
           int count = 5;

           for (int t = 1; t <= count; t++)
           {
               sb.Insert(0, t & 1);
               Console.WriteLine(sb);
           }

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