直接粘代码吧 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; //利用键值对这个数据结构统计一个句子中每个单词出现的个数. class Program { public static void Main() { var dic= new Dictionary<char,int>(); string str = &…
一 C# 键值对类有以下类: ① IDictionary<string, Object> idc = new Dictionary<string, object>(); ② KeyValuePair<string, object> par = (KeyValuePair<string, object>)shoplistcomboBox.SelectedItem; ③ Hashtable ht=new Hashtable(); file创建一…