随笔分类 -  C#/OOP

摘要：int Count(int val) { if (val == 0) return 0; return val + Count(val - 1); } static void Main(string[] args) { Console.WriteLine("please enter number"); int val = int.Parse(Console.ReadLine()); Console.WriteLine(new Pr... 阅读全文

摘要：//捉取页面 protected void Button1_Click(object sender, EventArgs e) { WebRequest webRequest = WebRequest.Create(this.txtSearch.Text.Trim()); WebResponse webResponse = webRequest.GetResponse(); Stream stream = webResponse.GetResponseStream(); //StreamReader sr = new StreamReader(stream); StreamReader sr 阅读全文

摘要：string filename = Session["file"] as string; string path = Server.MapPath("~/files/" + filename); if (File.Exists(path)) { FileInfo fi = new FileInfo(path); Response.Clear(); Response.ClearHeaders(); Response.ContentType = "application/octet-stream"; Response.AppendHead 阅读全文

摘要：DataTable dt = new DataTable(); DataColumn dc1 = new DataColumn(); dc1.ColumnName = "列名1"; DataColumn dc2 = new DataColumn(); dc2.ColumnName = "列名2"; dt.Columns.Add(dc1); dt.Columns.Add(dc2); DataRow dr1 = dt.NewRow(); dr1["列名2"] = "行值1"; dr1["列名1"] 阅读全文

摘要：public class Test{ public Test(int age){ this.Age=age;//如果这里使用的是this.age=age;那么属性里的判断将不会执行} private int age;public int Age{ get{return age;}set{ if(value<=18){ age=19;}else{ age=value;}}} 阅读全文

摘要：有一种写法是这样的 阅读全文

摘要：using System.Text;StringBuilder sb=new StringBulider("select pid,pname from table");sb.append(" where psex=男");Page.ClientScript,RegisterClientScriptBolck(GetType(),"test","alert('"+sb.ToString()+"')"... 阅读全文