C#程序帮助 [英] C# Help with program

问题描述

你好，

我需要为学校创建一个程序.用户输入不包含数字1和0的7位数字(电话号码).每个数字2-9与三个字母相关联，2 =(a，b，c)3 =(d，e，f)等.我需要列出txt文件中所有可能的字母组合(2,147或3 ^ 7). 我可以转换用户输入< string>到charArray，但是我不确定如何给数字"2"赋予(a，b，c)的值，或给"3"赋予(d，e或f ).任何帮助，链接，想法或其他任何东西都将是很大的帮助.

入门方面的帮助很大，我创建了数组数组，将用户输入的字符串转换为数组数组.现在，我需要列出所有可能的字母组合，而不是abc，def，ghi或abcdefghi，我需要更多类似adg，adh，adi，aeg，aeh，aei，afg，afh，afi等的东西.有什么想法吗?感谢

Hello,

I need to create a program for school. User inputs 7 digit number (phone number) without numbers 1 and 0. Each number 2-9 is associated with three letters, 2=(a,b,c) 3=(d,e,f) etc. I need to list all possible letter combinations (2,147 or 3^7) in a txt file. I can convert the user input<string> to a charArray, but I''m not sure how to go about give the number ''2'' the value of (a,b,c), or ''3'' a value of (d,e,or f). Any help, links, ideas, or anything would be a big help.

Big help getting me started, I have created array of arrays, converted user input string into array of arrays. Now I need to list all possible letter combos, instead of abc, def, g or abcdefg I need something more like adg, adh, adi, aeg, aeh, aei, afg, afh, afi, etc. Any ideas? thanks

推荐答案

设置字符数组:

Set up an array of arrays of characters:

char[][] convert = new char[10][];
convert[0] = new char[0];
convert[1] = new char[0];
convert[2] = new char[] { 'A', 'B', 'C' };
...

然后可以将用户输入用作数组的索引.在这里，我使用一个for循环来遍历所有这些，这将为您提供想法:

You can then use the user input as an index into the array. Here I use a for loop to run through them all, which will give you the idea:

for (int i = 0; i < convert.Length; i++)
    {
    Console.WriteLine();
    foreach (char c in convert[i])
        {
        Console.Write(c);
        }
    }

我终于得到了想要的输出，感谢格里夫(Griff)的大力帮助，如果有人知道更好的方法，我想看看

这将以7个char数组或3个char数组输出所有可能的组合:

I finally got the output I was looking for, thanks Griff big help getting started, if anyone knows better way, I''d like to see

This outputs every possible combination in a seven char array or 3 char arrays:

for (int i = 0; i < 2188; i++ )
            {

                writeit.Write(phoneArray[0][d1]);
                writeit.Write(phoneArray[1][d2]);
                writeit.Write(phoneArray[2][d3]);
                writeit.Write(phoneArray[3][d4]);
                writeit.Write(phoneArray[4][d5]);
                writeit.Write(phoneArray[5][d6]);
                writeit.WriteLine(phoneArray[6][d7]);
                d1++;

                if (d1 > 2)
                {
                    d1 = 0;
                    d2++;
                }
                if (d2 > 2)
                {
                    d2 = 0;
                    d3++;
                }
                if (d3 > 2)
                {
                    d3 = 0;
                    d4++;
                }
                if (d4 > 2)
                {
                    d4 = 0;
                    d5++;
                }
                if (d5 > 2)
                {
                    d5 = 0;
                    d6++;
                }
                if (d6 > 2)
                {
                    d6 = 0;
                    d7++;
                }
                if (d7 > 2)
                {
                    d7 = 0;
                    writeit.Close();
                }

这篇关于C#程序帮助的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！