Question

我是初学程序员。

我编写了以下代码，我想比较Track ID（在我的数据集中）的长度和跟踪ID（从网页中提取）两者都突出显示。（我的数据集有两个字段（用户id-track id），我想将此轨道ID与从网页返回的轨道ID进行比较）

我想这样：

if (client.Contains(Convert.ToString(TrackID))&&row["TrackID"].lenght=Track ID.lenght)

谢谢

代码：

  using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.Net;

namespace test2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            OleDbConnection conn = new OleDbConnection();
            conn.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\hidden.accdb";
            conn.Open();
            OleDbCommand cmd = new OleDbCommand();
            cmd.Connection = conn;
            cmd.CommandText = "Select * from hidden.accdb";
            DataTable dt = new DataTable();
            //To read data from dataset
            OleDbDataAdapter adapter = new OleDbDataAdapter();
            adapter.SelectCommand = cmd;
            //Store the UserID
            adapter.Fill(dt);
            int UserID=0,TrackID=0;
            int counter=0;
            foreach(DataRow row in dt.Rows)
            {
                string url = "http://abcd/<userid>?groups=<userid>";
                var test = url.Replace("<userid>", Convert.ToString(row["UserID"]));
                System.Diagnostics.Process.Start(url);
                string client = (new WebClient()).DownloadString("http://abcd/UserID?groups=UserID");
                if (client.ToLower() == (Convert.ToString(TrackID).ToLower()))
                {
                    counter++;
                }
                int ave = counter / 2916;
                MessageBox.Show("Average" + counter);
            }
            conn.Close();
            }

}
}

Answer 1

为什么不这样做？

foreach(DataRow row in dt.Rows)
                {
                    string url = "http://abcd/<userid>?groups=<userid>";
                    var test = url.Replace("<userid>", Convert.ToString(row["UserID"]));
                    System.Diagnostics.Process.Start(url);
                    string client = (new WebClient()).DownloadString("http://abcd/UserID?groups=UserID");
                    if (client.ToLower() == Convert.ToString(TrackID).ToLower())
                    {
                        counter++;
                    }

比较两个变量的长度

1 个答案: