枚举使用
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public partial class WebForm9 : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { btn.Click += new EventHandler(btn_Click); } protected void btn_Click(object sender, EventArgs e) { int str = (int)TimeofDay.Morning;//取枚举的值 string str2 = TimeofDay.Morning.ToString(); MessageBox.Show(str.ToString() + "," + str2); //输出为: 0 , Morning } /// <summary> /// 一个枚举 /// :int 可以不写的。然后也可以定义为 long 等 /// </summary> public enum TimeofDay : int { Morning = 0, Afternon = 1, Evening = 2 }}