#region 基本内存状态变化
using (TencentClassRoomContext context = new TencentClassRoomContext())
{
SysUser user5 = context.SysUsers.Find(5)
#region 基本内存状态变化
using (TencentClassRoomContext context = new TencentClassRoomContext())
{
SysUser user5 = context.SysUsers.Find(5)