Just write a beginning, the aircraft at the time of firing bullets, every 3-4, will appear the sound of bullets fired 2 times in a row, looking for a day, also didn't find what is the problem, a great god, ah, ah, help here didn't find a place to upload attachments, troublesome everybody a great god network location to download the link below, thanks a lot,

Direct execution folder. The main py just
Link: https://pan.baidu.com/s/1aOwICtBF2CqCWC85rP_jLw
The extracted code: 44 op