C#初学笔记

            enum              weekday
    { 
       sun=1,
       mon=2,
       tue=3,
       wed=4,
       thi=5,
       fri=6,
       sat=7     }foreach (weekday c in (weekday [])enum.getvalues(typeof(weekday )))

{
console.write(string.format("{0}是一周第{1}天"，c.tostring()，（int）c));
}

            enum              weekday
    { 
       sun=1,
       mon=2,
       tue=3,
       wed=4,
       thi=5,
       fri=6,
       sat=7 }for (int i = (int)position.sun; i <=(int)position.sat; i++) {
      daysarray[i] = enum.getname(typeof(weekday), i);
                console.write(daysarray[i]+"");
            }

            public             class              a { 
                 public             virtual             void              print() { 
        console.write(             "             a             "             ); 
    }
}             public             class              b : a { 
                 public             override             void              print() { 
        console.write(             "             b             "             ); 
    }
}             public             class              c : b { 
                 public             new             void              print() { 
        console.write(             "             c             "             ); 
    }
}             public             class              d : c { 
                 public             new             void              print() { 
        console.write(             "             d             "             ); 
    }
}             //              a <- b <- c <- d              a a; a= new d();
a.print();