public override void AddWhere(MemberExpression exp, ExpressionInfo arg)
{
if (exp.Expression != null)
{
// 存储变量名称,再需要解析变量值的时候获取此字段的值
arg.ConstantName = exp.Member.Name;
HelperTool.AddWhere(exp.Expression, arg);
arg.SetObject(exp.Member.Name);
}
else
{
var fi = (PropertyInfo)exp.Member;
var val = fi.GetValue(((ConstantExpression)exp.Expression)?.Value, null);
arg.SetObjectValue(val);
}
}