class Flight(object):
def __init__(self,name):
self.flight_name = name
def checking_status(self):
print("checking flight %s status " % self.flight_name)
return 0
@property #把一个方法变成静态属性，可以对原值进行调用，修改，而又不修改方法。
def flight_status(self):
status = self.checking_status()
if status == 0 :
print("flight got canceled...")
elif status == 1 :
print("flight is arrived...")
elif status == 2:
print("flight has departured already...")
else:
print("cannot confirm the flight status...,please check later")
@flight_status.setter
def flight_status(self,status):
print("flight %s has changed status to %s" %(self.flight_name,status))
f = Flight("CA980")
f.flight_status
f.flight_status = 2
