如何读文件？

[kvyd]

BSS release : 8
Name of BSC : SQ_BSCG2_1
Type of Measurement : RT180_Traffic Flow Measurements
Measurement begin date and time : 2007-02-09 20:00
Measurement end date and time : 2007-02-10 00:00


文件格式如上所式，请问如何将冒号后面的字符串读到5个变量中？

请给出完整代码，谢谢

[WAWQ]

笨方法，一行一行取，找第一个":"所在位置，取这个位置以后的数据即可 ~~

[kvyd]

代码，谢谢

[cpp2017]

用streamreader将文本读到了一个变量中 然后用正则或用回车换行分成数组.

[cpp2017]

System.IO.StreamReader sr = new System.IO.StreamReader(Server.MapPath("aa.txt"),System.Text.Encoding.Default); string str= sr.ReadToEnd(); sr.Close();

[cpp2017]

然后 string[] ary =System.Text.RegularExpressions.Regex.Split(str,"\r\n"); for(int i=0;i<ary.Length;i++) { if(ary[i] != "") { ary[i] = System.Text.RegularExpressions.Regex.Split(ary[i],"\t:")[1]; } } 这个ary就是所要的数组.

[viena]

string s1,s2,s3,s4,s5;
System.IO.StreamReader sr = new System.IO.StreamReader(Server.MapPath("aa.txt"));
string str= sr.ReadToEnd();
sr.Close();
string[] arr = str.Split("\r\n");
s1 = arr[0].Split(':')[1];
s2 = arr[1].Split(':')[1];
s3 = arr[2].Split(':')[1];
s4 = arr[3].Split(':')[1];
s5 = arr[4].Split(':')[1];

[viena]

string s1,s2,s3,s4,s5;
System.IO.StreamReader sr = new System.IO.StreamReader(Server.MapPath("aa.txt"));
string str= sr.ReadToEnd();
sr.Close();
string[] arr = str.Split(new char[] {'\r','\n'});
s1 = arr[0].Split(':')[1];
s2 = arr[1].Split(':')[1];
s3 = arr[2].Split(':')[1];
s4 = arr[3].Split(':')[1];
s5 = arr[4].Split(':')[1];

[Ring1981]

以下是完整代码::



using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;

public partial class Readfile : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{
StreamReader objReader = new StreamReader(@"D:\a.txt");
string[] list = new string[5];
string sLine="";
while (sLine != null)
{
sLine = objReader.ReadLine();
if (sLine != null)
{
string[] k = sLine.Split(':');
string newline = "";
if (k.Length > 2)
{
for (int i = 1; i < k.Length; i++)
{
newline += k[i]+":";
}
newline = newline.Substring(0, newline.Length - 1);
}
else
{
newline += k[1];
}
this.Response.Write(newline + "<br/>");
}
// this.Response.Write(sLine+"<br/>");
}

objReader.Close();
}
}

[kvyd]

索引超出了数组界限。


楼上有QQ吗，面谈！

[Ring1981]

StreamReader objReader = new StreamReader(@"D:\a.txt");
string[] list = new string[5];

你看看你的.txt文件是否已经超过5行???

[Ring1981]

如果你的txt文件的行数很多,请设置string[] list = new string[5];

[kvyd]

谢谢各位，如果我只取这里面的前三行，怎么办？

[seky5211314]

用循环控制！！！！