ecrin-mdr-crcClinical2022colorectal cancerColorectal CancerInterventionalhttps://newmdr.ecrin.org/Study/87155China1ECRIN MDRRecruitingfalseStudy on the effect of nutritional education based on the theory of reaching the standard on oral nutrition supplement after colorectal cancer surgeryInterventions: control group:routine nutrition education;observation group:nutrition education based on the theory of reaching the standard Primary outcome(s): Nutritional indicators: serum albumin, prealbumin, hemoglobin Study Design: Parallel2022-01-1587155ChiCTR2300071035