- static System.Collections.Specialized.StringCollection MakeStrings(string[] characters, int finalStringLength)
- {
- int finalLength = finalStringLength; // The length of the final strings.
- System.Collections.Specialized.StringCollection existingStrings;
- System.Collections.Specialized.StringCollection newStrings =
- new System.Collections.Specialized.StringCollection(); // Start with the all one-letter combinations.
- newStrings.AddRange(characters);
- for (int len = 2; len <= finalLength; len++)
- {
- // Start a new collection of strings based on the existing strings.
- existingStrings = newStrings;
- newStrings = new System.Collections.Specialized.StringCollection();
- // Concatenate every string of length (len-1)...
- foreach (string str in existingStrings)
- {
- // ...with every character...
- foreach (string ch in characters)
- {
- // ...to create every possible string of length len.
- newStrings.Add(str + ch);
- }
- }
- }
- return newStrings;
- }
- //该片段来自于http://www.codesnippet.cn/detail/0607201614795.html
来源: http://www.codesnippet.cn/detail/0607201614795.html