正如标题所述，我正在尝试通过他们的标签查找成员，但是我使用的代码不起作用。
/etc/init.d/iptables restart答案 0 :(得分：1)
属性 public class Student
{
private readonly TextFileHandler TFH = TextFileHandler.Instance;
public List<string> Lines { get; private set; } = new List<string>();
private static readonly Lazy<Student> student = new Lazy<Student>(() => new Student());
public static Student Instance { get { return student.Value; } }
private Book b = Book.Instance;
private StudentsWindow SW;
public int Id { get; set; }
public string Name { get; set; }
public string PhoneNum { get; set; }
public List<BookBorrowed> BorrowedBooks { get; set; }
private Student() { }
private Student(int id, string name, string phoneNum, List<BookBorrowed> borrowedBooks)
{
Id = id;
Name = name;
PhoneNum = phoneNum;
BorrowedBooks = borrowedBooks;
}
public Student(string Name, string PhoneNum)
{
Id = GenerateID();
this.Name = Name;
this.PhoneNum = PhoneNum;
BorrowedBooks = new List<BookBorrowed>();
}
public Student(string Name, string PhoneNum, List<BookBorrowed> BorrowedBooks)
{
Id = GenerateID();
this.Name = Name;
this.PhoneNum = PhoneNum;
this.BorrowedBooks = BorrowedBooks;
}
public void AddStudent(Student newStudent)
{
SW = Application.Current.Windows.OfType<StudentsWindow>().First();
UpdateStudentsLinesList();
if (!TFH.CheckLineExistens($"שם:{newStudent.Name}", Paths.studentsFile) ||
!TFH.CheckLineExistens($"טלפון:{newStudent.PhoneNum}", Paths.studentsFile))
{
Lines.Add($"מ''ס:{GenerateID()}\n[");
Lines.Add($"שם:{newStudent.Name}");
Lines.Add($"טלפון:{newStudent.PhoneNum}");
Lines.Add($"ספרים מושאלים");
Lines.Add(@"{");
foreach (var book in newStudent.BorrowedBooks)
{
Lines.Add($"שם הספר:{book.BookName}");
Lines.Add($"תאריך השאלה:{DateTime.Now.ToShortDateString()}");
}
Lines.Add(@"}");
Lines.Add("]");
SW.WriteToConsole($"התלמיד {newStudent.Name} נוסף בהצלחה ");
}
else
{
SW.WriteToConsole($"התלמיד {newStudent.Name} כבר קיים במערכת ");
}
TFH.OverWriteFile(Lines, Paths.studentsFile);
}
public void AddStudentWithoutOuput(Student newStudent)
{
SW = Application.Current.Windows.OfType<StudentsWindow>().First();
UpdateStudentsLinesList();
if (!TFH.CheckLineExistens($"שם:{newStudent.Name}", Paths.studentsFile) ||
!TFH.CheckLineExistens($"טלפון:{newStudent.PhoneNum}", Paths.studentsFile))
{
Lines.Add($"מ''ס:{GenerateID()}\n[");
Lines.Add($"שם:{newStudent.Name}");
Lines.Add($"טלפון:{newStudent.PhoneNum}");
Lines.Add($"ספרים מושאלים");
Lines.Add(@"{");
foreach (var book in newStudent.BorrowedBooks)
{
Lines.Add($"שם הספר:{book.BookName}");
Lines.Add($"תאריך השאלה:{DateTime.Now.ToShortDateString()}");
}
Lines.Add(@"}");
Lines.Add("]");
}
TFH.OverWriteFile(Lines, Paths.studentsFile);
}
public void AddBookToStudent(Book newBook, Student student)
{
SW = Application.Current.Windows.OfType<StudentsWindow>().First();
bool bookExist = false;
student.BorrowedBooks.ForEach(bookName => {
if (bookName.Equals(newBook.BookName))
bookExist = true;
});
if (
!bookExist &
newBook.Quantity != 0)
{
student.BorrowedBooks.Add(new BookBorrowed(newBook.BookName));
StudentWithUpdatedBooks(student);
Book bookWithLowerQuantity = new Book(newBook);
bookWithLowerQuantity.Quantity--;
b.UpdateInfo(newBook, bookWithLowerQuantity);
SW.WriteToConsole($"הספר {newBook.BookName} נוסף בהצלחה לתלמיד {student.Name}");
SW.WriteToConsole($"כמות הספרים הנותרים מהספר {newBook.BookName}: {bookWithLowerQuantity.Quantity}");
}
else
{
if(bookExist)
SW.WriteToConsole($"הספר {newBook.BookName} כבר קיים אצל התלמיד {student.Name}");
else if(newBook.Quantity == 0)
SW.WriteToConsole($"אין עוד מספר זה בסיפרייה. כמות הספרים מהספר {newBook.BookName}: {newBook.Quantity--}");
}
}
public void DeleteStudent(Student student)
{
UpdateStudentsLinesList();
if (TFH.CheckLineExistens($"שם:{student.Name}", Paths.studentsFile) &
TFH.CheckLineExistens($"טלפון:{student.PhoneNum}", Paths.studentsFile))
{
if (student.BorrowedBooks.Count != 0)
{
List<Book> booksStudentHave = new List<Book>(), booksToReturn = new List<Book>();
student.BorrowedBooks.ForEach(bookName => {
booksStudentHave.Add(b.GetBookByInfo($"שם:{bookName}"));
});
booksStudentHave.ForEach(book => {
Book bHolder = new Book(book);
bHolder.Quantity += book.Quantity;
b.UpdateInfo(book,bHolder);
});
}
bool inMidName = false, inMidPhone = false, insindMide = false;
List<string> newList = new List<string>();
int idLine = new int(), currentline = 1;
foreach (var line in Lines)
{
if (line.Equals($"שם:{student.Name}"))
inMidName = true;
if (line.Equals($"טלפון:{student.PhoneNum}"))
inMidPhone = true;
if (inMidName & inMidPhone)
{
idLine = currentline - 4;
break;
}
currentline++;
}
int id = int.Parse(Lines[idLine].Substring(Lines[idLine].IndexOf(":")+1));
foreach (var line in Lines)
{
if (line.Equals($"מ''ס:{id}"))
insindMide = true;
if (insindMide)
{
if (line.Equals("]"))
insindMide = false;
}
else
newList.Add(line);
}
TFH.OverWriteFile(newList, Paths.studentsFile);
}
}
public void DeleteStudent(string name, string phoneNum)
{
UpdateStudentsLinesList();
if (TFH.CheckLineExistens($"שם:{name}", Paths.studentsFile) &
TFH.CheckLineExistens($"טלפון:{phoneNum}", Paths.studentsFile))
{
bool inMidName = false, inMidPhone = false, insindMide = false;
List<string> newList = new List<string>();
int idLine = new int(), currentline = 1;
foreach (var line in Lines)
{
if (line.Equals($"שם:{name}"))
inMidName = true;
if (line.Equals($"טלפון:{phoneNum}"))
inMidPhone = true;
if (inMidName & inMidPhone)
{
idLine = currentline - 4;
break;
}
currentline++;
}
int id = int.Parse(Lines[idLine].Substring(Lines[idLine].IndexOf(":") + 1));
foreach (var line in Lines)
{
if (line.Equals($"מ''ס:{id}"))
insindMide = true;
if (insindMide)
{
if (line.Equals("]"))
insindMide = false;
}
else
newList.Add(line);
}
TFH.OverWriteFile(newList, Paths.studentsFile);
}
}
public void StudentWithUpdatedBooks(Student student)
{
bool inMid = false;
List<string> updatedList = new List<string>();
foreach (var line in TFH.GetAllRawLines(Paths.studentsFile))
{
if (line.Equals($"מ''ס:{student.Id}"))
inMid = true;
if (inMid)
{
if (line.Equals("]"))
inMid = false;
}
else
updatedList.Add(line);
}
TFH.OverWriteFile(updatedList, Paths.studentsFile);
AddStudentWithoutOuput(student);
}
public void UpdateInfo(Student student,Student updatedStudent)
{
bool inMid = false;
List<string> updatedList = new List<string>();
foreach (var line in TFH.GetAllRawLines(Paths.studentsFile))
{
if (line.Equals($"מ''ס:{student.Id}"))
inMid = true;
if (inMid)
{
if (line.Equals("]"))
inMid = false;
}
else
updatedList.Add(line);
}
TFH.OverWriteFile(updatedList,Paths.studentsFile);
AddStudentWithoutOuput(updatedStudent);
}
private int GenerateID()
{
int newID = 0;
foreach (string line in TFH.GetAllRawLines(Paths.studentsFile))
{
if (line.Contains("מ''ס:"))
newID++;
}
return newID;
}
public List<string> GetNewStudent(Student student)
{
UpdateStudentsLinesList();
List<string> newLines = new List<string>();
if (!TFH.CheckLineExistens($"שם:{student.Name}", Paths.studentsFile) &
!TFH.CheckLineExistens($"טלפון:{student.PhoneNum}", Paths.studentsFile))
{
Lines.Add($"מ''ס:{student.Id}\n[");
Lines.Add($"שם:{student.Name}");
Lines.Add($"טלפון:{student.PhoneNum}");
Lines.Add($"ספרים מושאלים");
Lines.Add(@"{");
foreach (var book in student.BorrowedBooks)
{
Lines.Add($"שם הספר:{book.BookName}");
Lines.Add($"תאריך השאלה:{DateTime.Now.ToShortDateString()}");
}
Lines.Add(@"}");
Lines.Add("]");
}
return newLines;
}
public List<Student> GetStudentList()
{
List<Student> newList = new List<Student>();
foreach (var line in TFH.GetAllRawLines(Paths.studentsFile))
{
if (line.Contains("מ''ס"))
newList.Add(GetStudentByInfo(line));
}
return newList;
}
public Student GetStudentByInfo(string info)
{
string name = null, phoneNum = null,BB_name = null;
int id = new int();
DateTime BB_lent;
List<BookBorrowed> borrowedBooks = new List<BookBorrowed>();
bool inMid = false, inMidBooks = false, insideBook = false;
if (info.Contains("מ''ס"))
{
foreach (var line in TFH.GetAllRawLines(Paths.studentsFile))
{
if (line.Equals(info))
{
inMid = true;
id = int.Parse(line.Substring(line.IndexOf(":") + 1));
}
if (inMid)
{
if (line.Equals("]"))
break;
else if (line.Contains("שם:"))
name = line.Substring(line.IndexOf(":") + 1);
else if (line.Contains("טלפון:"))
phoneNum = line.Substring(line.IndexOf(":") + 1);
else if (line.Equals("{"))
{
inMidBooks = true;
continue;
}
else if (line.Equals("}"))
inMidBooks = false;
if (inMidBooks)
{
if (line.Contains("שם הספר:"))
{
BB_name = line.Substring(line.IndexOf(":") + 1);
insideBook = true;
continue;
}
if (insideBook)
{
BB_lent = DateTime.Parse(line.Substring(line.IndexOf(":")+1));
borrowedBooks.Add(new BookBorrowed(BB_name,BB_lent));
insideBook = false;
}
}
}
}
return new Student(id, name, phoneNum, borrowedBooks);
}
return null;
}
public void UpdateStudentsLinesList() { Lines = TFH.GetAllRawLines(Paths.studentsFile); }
public BookBorrowed GetBorrowedBookInfo(Student student,string borrowedBookName)
{
Student currentStudent = GetStudentByInfo($"מ''ס:{student.Id}");
foreach (var book in currentStudent.BorrowedBooks)
{
if (book.BookName.Equals(borrowedBookName))
return new BookBorrowed(book.BookName, book.BookLendDate);
}
return null;
}
}
属于public class BookBorrowed
{
public string BookName { get; set; }
public DateTime BookLendDate { get; set; }
public BookBorrowed(string BookName)
{
this.BookName = BookName;
this.BookLendDate = DateTime.Now;
}
public BookBorrowed(string BookName, DateTime BookLendDate)
{
this.BookName = BookName;
this.BookLendDate = BookLendDate;
}
}
，而不是tag。因此，您必须使用User。
GuildMember