public Assignment(string title, string content, uint type, uint week, DateTime deadline, File_entry fileEntry)
{
this.title = title;
this.content = content;
this.type = type;
this.week = week;
ddl = deadline;
start = DateTime.Now;
aid = null;
this.fileEntry = fileEntry;
}
public Assignment()
{
type = 0;
week = 0;
start = null;
ddl = null;
content = "";
title = "";
aid = null;
fileEntry = new File_entry();
}
