主要考查的是字符串的处理，大小写转换，以及字符串的Linq处理

Description:

Definition-

back·ro·nym

noun

a fanciful expansion of an existing acronym or word, such as “port out, starboard home” for posh.

You will create a function called makeBackronym . There will be a preloaded dictionary to use. The dictionary is an object where the the keys are letters A-Z and the values are a predetermined word.

Use the variable name (its name is written in the code template) to reference the uppercase letters of the dictionary.

EXAMPLE:

dict['P']=="perfect"

There will be a string(without spaces) passed into the function that you need to translate to a Backronym.

The preloaded dictionary can only read uppercase letters, and the value you return will have to be a string.

EXAMPLES:

"dgm" -> "disturbing gregarious mustache""lkj" -> "literal klingon joke"

using System;public partial class Kata{  public static string MakeBackronym(string s)  {      s = s.ToUpper();      string str = string.Empty;      foreach(var item in s)      {          str += dict[item]+" ";      }      if(str.Equals(string.Empty)==false)      {         str = str.Substring(0,str.Length-1);      }      return str;  }}

 

其他解法：

涉及到string类的静态函数Join

以及string类的方法ToUpper  

以及Linq中的select

using System.Linq;public partial class Kata{  public static string MakeBackronym(string s)  {    return string.Join(" ", s.ToUpper().Select(c => dict[c]));  }}

 

#region 程序集 System.Core.dll, v4.0.0.0// C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\System.Core.dll#endregionnamespace System.Linq{// 摘要:// 提供一组用于查询实现 System.Collections.Generic.IEnumerable
      
        的对象的 static（在 Visual// Basic 中为 Shared）方法。public static class Enumerable  {public static IEnumerable
       
         Select
        
         (this IEnumerable
         
           source, Func
          
            selector);   } }