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.IO;namespace WindowsFormsApplication15 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { string[] htms = Directory.GetFiles("c:\\abc"); List<wenjian> list_wenjian=new List<wenjian>(); foreach (string wj in Directory.GetFiles("c:\\abc")) { list_wenjian.Add(new wenjian { name = wj, time = File.GetLastWriteTime(wj) }); //.GetCreationTime(wj) }); } var tiaojian_fj = from wenjian wj in list_wenjian where (wj.time > DateTime.Parse("2009-04-08")) && (wj.time < DateTime.Parse("2009-05-01")) select wj; List<wenjian> list_wenjian1=new List<wenjian>(tiaojian_fj.ToArray()); this.Text = list_wenjian1.Count.ToString();
} } class wenjian { public string name; public DateTime time; } }你的第一个问题,第二个就是用indexofhttp://www.mystruggle.com.cn
2\读出txt内容,然后 内容.IndexOf("AA")!=-1 就是不存在,否则存在
FileInfo[] fis = di.GetFiles("*.txt");
for(int i=0;i<fis.Length;i++)
{
if(fis[i].CreationTime <DateTime.Now)
{
//fis[i].Name 文件名
}
}2.
StreamReader m_streamReader = new StreamReader(filepathname, System.Text.Encoding.GetEncoding("gb2312"));
string filestr = m_streamReader.ReadToEnd();
m_streamReader.Close();
if(filestr.IndexOf("AA")>=0)
{
//存在
}
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.IO;namespace WindowsFormsApplication15
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} private void button1_Click(object sender, EventArgs e)
{
string[] htms = Directory.GetFiles("c:\\abc");
List<wenjian> list_wenjian=new List<wenjian>();
foreach (string wj in Directory.GetFiles("c:\\abc"))
{
list_wenjian.Add(new wenjian { name = wj, time = File.GetLastWriteTime(wj) }); //.GetCreationTime(wj) });
} var tiaojian_fj = from wenjian wj in list_wenjian
where (wj.time > DateTime.Parse("2009-04-08")) && (wj.time < DateTime.Parse("2009-05-01"))
select wj;
List<wenjian> list_wenjian1=new List<wenjian>(tiaojian_fj.ToArray());
this.Text = list_wenjian1.Count.ToString();
}
} class wenjian
{
public string name;
public DateTime time;
}
}你的第一个问题,第二个就是用indexofhttp://www.mystruggle.com.cn
多余了