学用 ASP.Net 之 System.Collections.Specialized.StringDictionary 类

StringDictionary 相当于 Key 和 Value 都是字符串的哈希表.

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主要成员:

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/* 属性 */

Count;  //

Keys;   //键集合

Values; //值集合



/* 方法 */

Add();           //

Clear();         //

ContainsKey();   //是否包含指定键

ContainsValue(); //是否包含指定值

CopyTo();        //将指定值赋值到数组

Remove();        //根据键删除

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简单练习:

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protected void Button1_Click(object sender, EventArgs e)

{

    StringDictionary sd = new StringDictionary();

    sd.Add("k1", "AAA");

    sd.Add("k2", "BBB");

    sd.Add("k3", "CCC");



    sd["k2"] = "bbb";



    string str = "";

    foreach (DictionaryEntry de in sd) //System.Collections.DictionaryEntry

    {

        str += string.Format("{0}:{1}; ", de.Key, de.Value);

    }



    TextBox1.Text = str; //k1:AAA; k2:bbb; k3:CCC; 

}                    



protected void Button2_Click(object sender, EventArgs e)

{

    StringDictionary sd = new StringDictionary();

    sd.Add("k1", "AAA");

    sd.Add("k2", "BBB");

    sd.Add("k3", "CCC");



    string str1, str2;

    str1 = str2 = "";



    foreach (string s in sd.Keys) { str1 += s + ","; }   //k1,k2,k3,

    foreach (string s in sd.Values) { str2 += s + ","; } //AAA,BBB,CCC,



    TextBox1.Text = str1 + "\n" + str2;

}

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