/// <summary>Or操作</summary>
/// <param name="exp"></param>
/// <returns></returns>
public WhereExpression Or(Expression exp)
{
if (exp != null)
{
Exps.Add(new ExpItem(false, exp));
}
return(this);
}
/// <summary>And操作</summary>
/// <param name="exp"></param>
/// <returns></returns>
public WhereExpression And(Expression exp)
{
if (exp == null)
{
return(this);
}
// 如果前面有Or，则整体推入下一层
if (Exps.Any(e => !e.IsAnd))
{
var where = new WhereExpression();
where.Exps.AddRange(Exps);
Exps.Clear();
Exps.Add(new ExpItem(true, where));
}
Exps.Add(new ExpItem(true, exp));
return(this);
}