C# 字符串处理

原字符串：“0,13,1:0,12,0:1,2,1:1,1,0”

要求输出字符串（降序）：

 1             string input = "0,13,1:0,12,0:1,2,1:1,1,0";
 2             SortedDictionary<int, SortedDictionary<int, int>> dict = new SortedDictionary<int, SortedDictionary<int, int>>();
 3 
 4             string[] parts = input.Split(':');
 5             foreach (string part in parts)
 6             {
 7                 int[] values = Array.ConvertAll(part.Split(','), int.Parse);
 8 
 9                 int key = values[0];
10                 int subKey = values[1];
11                 int value = values[2];
12 
13                 if (!dict.ContainsKey(key))
14                     dict[key] = new SortedDictionary<int, int>();
15 
16                 dict[key][subKey] = value;
17             }
18 
19             List<string> results = new List<string>();
20             foreach (int key in dict.Keys)
21             {
22                 SortedDictionary<int, int> subDict = dict[key];
23 
24                 int? lastSubKey = null;
25                 List<int> subKeyList = new List<int>();
26                 List<string> valueList = new List<string>();
27 
28                 foreach (int subKey in subDict.Keys.OrderByDescending(x => x))
29                 {
30                     if (lastSubKey.HasValue && subKey != lastSubKey - 1)
31                     {
32                         if (subKeyList.Count == 1)
33                             results.Add($"{key},{subKeyList[0]},{subDict[subKeyList[0]]}");
34                         else
35                             results.Add($"{key},{subKeyList[0]}-{subKeyList[subKeyList.Count - 1]},{string.Join("", valueList)}");
36 
37                         subKeyList.Clear();
38                         valueList.Clear();
39                     }
40 
41                     subKeyList.Add(subKey);
42                     valueList.Add(subDict[subKey].ToString());
43                     lastSubKey = subKey;
44                 }
45 
46                 if (subKeyList.Count == 1)
47                     results.Add($"{key},{subKeyList[0]},{subDict[subKeyList[0]]}");
48                 else if (subKeyList.Count > 1)
49                     results.Add($"{key},{subKeyList[0]}-{subKeyList[subKeyList.Count - 1]},{string.Join("", valueList)}");
50             }
51 
52             foreach (string result in results)
53                 Console.WriteLine(result);

 

输出结果：

0,13-12,10
1,2-1,10

要求输出字符串（升序）：

1             string input = "0,13,1:0,12,0:1,2,1:1,1,0";
2             SortedDictionary<int, SortedDictionary<int, int>> dict = new SortedDictionary<int, SortedDictionary<int, int>>();
3 
4             string[] parts = input.Split(':');
5             foreach (string part in parts)
6             {
7                 int[] values = Array.ConvertAll(part.Split(','), int.Parse);
8 
9                 int key = values[0];
10                 int subKey = values[1];
11                 int value = values[2];
12 
13                 if (!dict.ContainsKey(key))
14                     dict[key] = new SortedDictionary<int, int>();
15 
16                 dict[key][subKey] = value;
17             }
18 
19             List<string> results = new List<string>();
20             foreach (int key in dict.Keys)
21             {
22                 SortedDictionary<int, int> subDict = dict[key];
23 
24                 int? lastSubKey = null;
25                 List<int> subKeyList = new List<int>();
26                 List<string> valueList = new List<string>();
27 
28                 foreach (int subKey in subDict.Keys)
29                 {
30                     if (lastSubKey.HasValue && subKey != lastSubKey + 1)
31                     {
32                         if (subKeyList.Count == 1)
33                             results.Add($"{key},{subKeyList[0]},{subDict[subKeyList[0]]}");
34                         else
35                             results.Add($"{key},{subKeyList[0]}-{subKeyList[subKeyList.Count - 1]},{string.Join("", valueList)}");
36 
37                         subKeyList.Clear();
38                         valueList.Clear();
39                     }
40 
41                     subKeyList.Add(subKey);
42                     valueList.Add(subDict[subKey].ToString());
43                     lastSubKey = subKey;
44                 }
45 
46                 if (subKeyList.Count == 1)
47                     results.Add($"{key},{subKeyList[0]},{subDict[subKeyList[0]]}");
48                 else if (subKeyList.Count > 1)
49                     results.Add($"{key},{subKeyList[0]}-{subKeyList[subKeyList.Count - 1]},{string.Join("", valueList)}");
50             }
51 
52             foreach (string result in results)
53                 Console.WriteLine(result);

输出结果：

0,12-13,01
1,1-2,01