C# 一些简单算法

//Excel导入数据库 private DataSet CreateDataSource() { string strCon; strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("/net_admin/exportcj/excel.xls") + "; Extended Properties=Excel 8.0;"; OleDbConnection olecon =

     //Excel导入数据库
    private DataSet CreateDataSource()
    {
        string strCon;
        strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("/net_admin/exportcj/excel.xls") + "; Extended Properties=Excel 8.0;";
        OleDbConnection olecon = new OleDbConnection(strCon);
        OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);
        DataSet myds = new DataSet();
        myda.Fill(myds);
        return myds;
    }

 ///

 /// 字符串过滤
 ///

 /// 传来参数
 /// 过滤后的字符串
 public string FilterStr(string strvalue)
 {
     string strfilter = ";|%|*|and|exec|insert|select|delete|update|count|chr|mid|master|truncate|char|declare|script";
     string[] strfil = strfilter.Split('|');
     foreach ( string str in strfil)
     {
     strvalue = strvalue.Replace(str,"");
     }
     return strvalue;
 }