ecrin-mdr-crcClinical2019Colorectal cancer and gynecological malignant tumorColorectal Cancer And Gynecological Malignant TumorInterventionalhttps://newmdr.ecrin.org/Study/2685405China7ECRIN MDRRecruitingfalseEffect of Crystalloid and Colloid fluid Infusion on patients undergoing abdominal surgery with Da Vinci robot under Target guided fluid TherapyInterventions: 1:crystalloid therapy;2:colloid therapy Primary outcome(s): Recovery time of gastrointestinal function after operation Study Design: Parallel2019-07-152685405ChiCTR1900024397