优化以下python代码 def _check_ota_status(self): """检查OTA升级状态""" # 弹窗 d(resourceId="com.pax.otaupdate:id/tv_title_dialog") start_time = datetime.datetime.now() while True: end_time = datetime.datetime.now() time_left = (end_time - start_time).seconds if time_left > 600: print('upgrade timeout') return False if not self.d(resourceId="com.pax.otaupdate:id/tv_title_dialog").exists: return True print(f'upgrading ... {time_left}') time.sleep(3)
时间: 2023-12-17 14:05:00 浏览: 28
可以优化的地方包括:
1. 使用 `time.time()` 替换 `datetime.datetime.now()`,因为前者更快。同时,将 `time_left` 的计算方式修改为 `time_left = end_time - start_time`,这样可以避免计算出现误差。
2. 将 `time.sleep(3)` 修改为 `self.d.wait(timeout=3)`,这样可以使代码更加健壮。
修改后的代码如下所示:
```
import time
def _check_ota_status(self):
"""检查OTA升级状态"""
# 弹窗 d(resourceId="com.pax.otaupdate:id/tv_title_dialog")
start_time = time.time()
while True:
end_time = time.time()
time_left = end_time - start_time
if time_left > 600:
print('upgrade timeout')
return False
if not self.d(resourceId="com.pax.otaupdate:id/tv_title_dialog").exists:
return True
print(f'upgrading ... {time_left}')
self.d.wait(timeout=3)
```