计算日期时间之间发生的次数
本文关键字:日期 时间 之间 计算 | 更新日期: 2023-09-27 18:14:29
public void getCountUsers()
{
number = 0;
//UserList = new ObservableCollection<Users>();
UserList = new List<Users>();
EventLog myNewLog = new EventLog();
myNewLog.Log = "Security";
foreach (EventLogEntry entry in myNewLog.Entries)
{
if (entry.InstanceId == 4624 && entry.TimeWritten.Date == DateTime.Today)
{
Regex ip = new Regex(@"192");
Match IP = ip.Match(entry.ReplacementStrings[18]);
Regex tester = new Regex(@"127");
Match Tester = tester.Match(entry.ReplacementStrings[18]);
if (Tester.Success || IP.Success)
{
if (UserList.Count > 0)
{
bool check = false;
foreach (var user in UserList)
{
if (user.User == entry.ReplacementStrings[5])
{
user.countUsers += 1;
check = true;
}
}
if (!check)
{
Users u = new Users(1, entry.ReplacementStrings[5]);
UserList.Add(u);
}
}
else
{
Users u = new Users(1, entry.ReplacementStrings[5]);
//UserList = new ObservableCollection<Users>();
UserList = new List<Users>();
UserList.Add(u);
}
}
}
}
}
这是我用来计算一天有多少用户登录的方法。我需要检索的是如何过滤一天中的高峰时间,以及该高峰时间有多少人在线,以及谁在其中。
(例如12:00有1个用户,15:00有15个用户,15:00是高峰时间,总共有15个用户)
如果你需要更多的信息,我很乐意编辑。
编辑: foreach (EventLogEntry entry in myNewLog.Entries)
{
if (entry.InstanceId == 4624 && entry.TimeWritten.Date == DateTime.Today)
{
Regex ip = new Regex(@"192");
Match IP = ip.Match(entry.ReplacementStrings[18]);
string userName = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(entry.ReplacementStrings[5]);
Regex tester = new Regex(@"127");
Match Tester = tester.Match(entry.ReplacementStrings[18]);
if (IP.Success || Tester.Success)
{
Console.WriteLine(number +
". 't[Time of logon]'t't" + entry.TimeWritten.ToLongTimeString() + "'t" + entry.TimeWritten.ToShortDateString() +
"'n 't[Username-logon]'t" + userName +
"'n 't[IP-Adress]'t't" + entry.ReplacementStrings[18] +
"'n----------------------------------------------------------------------- ");
number++;
//Console.WriteLine(entry.TimeWritten.ToLongTimeString() + " ; " + entry.TimeWritten.ToShortDateString() + " ; " + entry.ReplacementStrings[5] + " ; " + entry.ReplacementStrings[18]);
}
}
}
上面输出第一部分,下面输出第二部分。
public void showAmount()
{
int indexUsername = 0;
++indexUsername;
Console.WriteLine("'nGebruikers:");
foreach (var user in UserList.Where(u => u.User != "SYSTEM"))
{
string userName = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(user.User);
//Console.WriteLine(indexUsername + ". " +" 't " + userName +"" + user.countUsers);
Console.WriteLine("#" +indexUsername + ".'t {0} has been online {1}x times ", userName, user.countUsers);
indexUsername++;
}
}
输出
这是你想要的东西吗?
public void getCountUsers()
{
EventLog myNewLog = new EventLog();
myNewLog.Log = "Security";
var query =
from EventLogEntry entry in myNewLog.Entries
where entry.InstanceId == 4624
where entry.TimeWritten.Date == DateTime.Today
where new[] { "192", "127" }.Any(x => entry.ReplacementStrings[18].Contains(x))
select new { entry.TimeWritten.Hour, User = entry.ReplacementStrings[5] };
var result =
query
.GroupBy(x => x.Hour, x => x.User)
.OrderByDescending(x => x.Count())
.Take(1)
.Select(x => new
{
Hour = x.Key,
Users =
x
.GroupBy(y => y)
.Select(y => new Users(y.Count(), y.Key))
.ToList()
})
.First();
Hour = result.Hour;
UserList = result.Users;
}
query
有效地替换了您的代码。它在myNewLog.Entries
上执行一个循环,并提取用于创建Users
对象的entry.ReplacementStrings[5]
值。我已将entry.TimeWritten.Hour
值添加到此数据中。
现在在result
变量中,我采用query
并将User
属性分组为Hour
。然后我按每个小时槽的用户数量递减排序,当我输入.Take(1)
时,我只得到用户最多的小时。然后,我选择小时并对用户进行另一个分组以创建Users
对象—就像您在代码中所做的那样—最后,我选择.First()
以获得人口最多的小时。
最后两个赋值只是为了模拟你的代码。
下面是生成输出字符串的方法:
string output =
String.Format(
"Most active users were online on {0},{1} The users online at the peak was: {2}",
TimeSpan.FromHours(result.Hour),
result.Users.Count(),
String.Join(", ", result.Users.Select(x => x.User)));