摘要：
反射实体T，非datetime字段反射获取表达式树publicstaticExpression>GetSearchExpression(stringSearchString){Expression>filter=null;if(string.IsNullOrEmpty(SearchString))returnnull;varleft=Expression.Parameter(typeof(T),"m");Expressionexpression=Expression.Constant(false);Tobj=default(T);vartype=typeof(T 阅读全文