fix: wrong uptime in lxc container

class/core/system_api.py

@@ -250,9 +250,12 @@ class system_api:
 
     def getBootTime(self):
         # 取系统启动时间
-        start_time = psutil.boot_time()
+        uptime = mw.readFile('/proc/uptime')
-        run_time = time.time() - start_time
+        if uptime == False:
-        # conf = mw.readFile('/proc/uptime').split()
+            start_time = psutil.boot_time()
+            run_time = time.time() - start_time
+        else:
+            run_time = uptime.split()[0]
         tStr = float(run_time)
         min = tStr / 60
         hours = min / 60