A Study of Comparing Effects of Thulium Laser en Bloc Resection and Electrical Transurethral Resection of the Non-muscle Invasive Bladder Cancer

This study is to verify the short-term efficacy and long-term prognosis of thulium laser resection compared with conventional transurethral resection of non-muscular invasive bladder cancer. Half of participants will receive thulium laser resection of bladder cancer, while the other half will receive electrical transurethral resection of bladder cancer.