Effect of Nerve Block Under Ultrasound on Postoperative Prognosis in Children

The goal of this study was to compare the incidence of pain and recovery agitation after single-port laparoscopic inguinal hernia repair in children. The main questions it aims to answer are: * Reduction of postoperative pain by rectus sheath block compared with local anesthesia infiltration and control group * A comparison between rectus sheath block and local anesthesia infiltration and control group on the reduction of agitation during postoperative recovery If there is a comparison group: The researchers will compare the ultrasound-guided rectus sheath group with the local anesthesia infiltration group and the control group to look at postoperative pain indicators and the incidence of waking agitation.