import time
import os

def tail_f(filename):
    with open(filename, 'r', encoding='utf-8') as f:
        # Move the cursor to the end of the file
        f.seek(0, os.SEEK_END)
        while True:
            line = f.readline()
            if not line:
                time.sleep(0.1)  # Sleep briefly
                continue
            print(line, end='')

if __name__ == "__main__":
    log_file = '选品日志log/选品日志.log'
    tail_f(log_file)