2025-01-20 10:45:46 read - data:      
2025-01-20 10:45:46 send - data: 
 len:1
2025-01-20 10:45:46 read - data: 
2025-01-20 10:45:47 read - data: 
2025-01-20 10:45:47 read - data: 
2025-01-20 10:45:48 read - data: 
2025-01-20 10:45:48 send - data: 
 len:1