
1.in function HAL_TCP_Connect, ' char port_str[PORT_BUFF_LEN]; memset(port_str, 0, PORT_BUFF_LEN);', we can direct to replace with 'char port_str[PORT_BUFF_LEN] = {0};'
1.in function HAL_TCP_Connect, ' char port_str[PORT_BUFF_LEN]; memset(port_str, 0, PORT_BUFF_LEN);', we can direct to replace with 'char port_str[PORT_BUFF_LEN] = {0};'