private async Task <string> ModifyState(UserState userState)
{
using var db = new YGBContext();
DB.Tables.User user = await db.Users.FirstOrDefaultAsync(u => u.Id == Id);
if (user is null)
{
return(USER_NOT_EXIST);
}
int value = (int)userState;
string description = userState.GetDescription();
if (user.State == value)
{
return($"用户已是{description}的状态，不能重复{description}");
}
user.State = value;
int count = await db.SaveChangesAsync();
if (count == 1)
{
return("");
}
return("启用失败");
}