在C#中的StringDictionary中获取值的集合
要在StringDictionary中获取值的集合，代码如下-
示例
using System;
using System.Collections;
using System.Collections.Specialized;
public class Demo {
public static void Main(){
StringDictionary strDict1 = new StringDictionary();
strDict1.Add("S", "家电");
strDict1.Add("T", "智能穿戴技术");
strDict1.Add("U", "Electronics");
strDict1.Add("V", "Toys");
strDict1.Add("W", "Books");
strDict1.Add("X", "Accessories");
Console.WriteLine("StringDictionary元素...-");
foreach(DictionaryEntry d in strDict1){
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("\nCollection of keys and values...");
String[] keyArr = new String[strDict1.Count];
strDict1.Keys.CopyTo(keyArr, 0);
for (int i = 0; i < strDict1.Count; i++) {
Console.WriteLine("Key "+(i+1)+" = "+keyArr[i]+", Value "+(i+1)+" = "+strDict1[keyArr[i]]);
}
Console.WriteLine("\nDoes StringDictionary has key B? "+strDict1.ContainsKey("B"));
}
}输出结果
这将产生以下输出-
StringDictionary元素...- x Accessories s 家电 t 智能穿戴技术 u Electronics v Toys w Books Collection of keys and values... Key 1 = x, Value 1 = Accessories Key 2 = s, Value 2 = 家电 Key 3 = t, Value 3 = 智能穿戴技术 Key 4 = u, Value 4 = Electronics Key 5 = v, Value 5 = Toys Key 6 = w, Value 6 = Books Does StringDictionary has key B? False
示例
让我们看另一个例子-
using System;
using System.Collections;
using System.Collections.Specialized;
public class Demo {
public static void Main(){
StringDictionary strDict1 = new StringDictionary();
strDict1.Add("A", "John");
strDict1.Add("B", "Andy");
strDict1.Add("C", "Tim");
strDict1.Add("D", "Ryan");
strDict1.Add("E", "Kevin");
strDict1.Add("F", "Katie");
strDict1.Add("G", "Brad");
Console.WriteLine("StringDictionary元素...-");
foreach(DictionaryEntry d in strDict1){
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("\nCollection of keys and values...");
String[] keyArr = new String[strDict1.Count];
strDict1.Keys.CopyTo(keyArr, 0);
for (int i = 0; i < strDict1.Count; i++) {
Console.WriteLine("Key "+(i+1)+" = "+keyArr[i]+", Value "+(i+1)+" = "+strDict1[keyArr[i]]);
}
Console.WriteLine("\nDoes StringDictionary has key B? "+strDict1.ContainsKey("B"));
}
}输出结果
这将产生以下输出-
tringDictionary elements... a John b Andy c Tim d Ryan e Kevin f Katie g Brad Collection of keys and values... Key 1 = a, Value 1 = John Key 2 = b, Value 2 = Andy Key 3 = c, Value 3 = Tim Key 4 = d, Value 4 = Ryan Key 5 = e, Value 5 = Kevin Key 6 = f, Value 6 = Katie Key 7 = g, Value 7 = Brad Does StringDictionary has key B? True