字符串中提取数据的问题,谢谢

Question

怎么将字符串<user><userid>1</userid><username>sadfsd</username></user>
<user><userid>2</userid><username>sadfsd2</username></user>中的user数据取出来呢?
得到的结果是<userid>1</userid><username>sadfsd</username><userid>2</userid><username>sadfsd2</username>,如何作,谢谢大家了!

Answer 1

string str=@"<user><userid>1</userid><username>sadfsd</username></user>
<user><userid>2</userid><username>sadfsd2</username></user>";
str=str.Replace("<user>","");
str=str.Replace("</user>","");

Answer 2

abc=“<user><userid>1</userid><username>sadfsd</username></user>
<user><userid>2</userid><username>sadfsd2</username></user>”abc.Substring(abc.IndexOf("<user>")+6,abc.Length-13)返回<userid>1</userid><username>sadfsd</username><userid>2</userid><username>sadfsd2</username>

Answer 3

一楼的办法不错，若是取数据可以考虑用dataset的readfromxml

Answer 4

这只是两条数据,还有很多条,应该怎么读取其中的userid,username的值,并插入数据库呢?谢谢大家

Answer 5

string str=@"<user><userid>1</userid><username>sadfsd</username></user>
<user><userid>2</userid><username>sadfsd2</username></user>";
str=str.Replace("<user>","");
str=str.Replace("</user>","");

Answer 6

public void GetString()
    {
    int FromID = 0;
    int EndID = 0;    int FromName = 0;
    int EndName = 0;    Hashtable ht = new Hashtable();    string strUserID = "";
    string strUserName = "";    string s = "<user><userid>userid1</userid><username>username1</username><userid>userid2</userid><username>username2</username></user>";
    
    FromID = s.IndexOf("<userid>",FromID);
    while (FromID > 0)
    {
        EndID = s.IndexOf("</userid>",FromID);
        strUserID = s.Substring(FromID + 8,EndID - (FromID + 8));        FromName = s.IndexOf("<username>",EndID + 9);
        EndName = s.IndexOf("</username>",FromName);        strUserName = s.Substring(FromName + 10,EndName - (FromName + 10));        ht.Add(strUserID,strUserName);        FromID = s.IndexOf("<userid>",EndName + 11);
    }
}祝你成功！！！