static void Update()
{
Console.WriteLine("请输入班级id");
int id = int.Parse(Console.ReadLine());
ClassBusinessLayer cbl = new ClassBusinessLayer();
Class classed = cbl.Query(id);
Console.WriteLine("请输入新的班级名字");
string name = Console.ReadLine();
classed.ClassName = name;
cbl.Update(classed);
}
static void Update()
{
Console.WriteLine("请输入班级ID");
int id = int.Parse(Console.ReadLine());
ClassBusinessLayer bbl = new ClassBusinessLayer();
Clas clas = bbl.Query(id);
Console.WriteLine("请输入新名字");
string name = Console.ReadLine();
clas.ClasName = name;
bbl.Update(clas);
}