b
变量里边 my_time()
不再被调用了??print("a"+my_time())
时,my_time()
每次都会被调用my_time()
应该怎么做?>>> import time
>>> def my_time():
... return time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
>>>
>>> my_time()
'2019-12-05 11:29:47'
>>> my_time()
'2019-12-05 11:29:50'
>>> b = "a"+my_time()
>>> b
'a2019-12-05 11:30:32'
>>> b
'a2019-12-05 11:30:32'
>>> b
'a2019-12-05 11:30:32'
>>> print("a"+my_time())
a2019-12-05 11:38:02
>>> print("a"+my_time())
a2019-12-05 11:38:03
>>> print("a"+my_time())
a2019-12-05 11:38:05
>>> b = "a" + time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
>>> b
'a2019-12-05 11:39:27'
>>> b
'a2019-12-05 11:39:27'
>>> b
'a2019-12-05 11:39:27'
>>>
>>> "a" + time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
'a2019-12-05 11:41:58'
>>> "a" + time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
'a2019-12-05 11:41:59'
>>> "a" + time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
'a2019-12-05 11:42:00'
>>> "a" + time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
'a2019-12-05 11:42:00'
>>> "a" + time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
'a2019-12-05 11:42:01'
>>> "a" + time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
'a2019-12-05 11:42:02'
>>>
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