日期串转时间戳函数

 1 def timeStampToDate(dateUnixString,format_string="%Y-%m-%d %H:%M:%S"):
 2     '''
 3     时间戳转换时间字符串，时间戳可以是10位或者13位的
 4     '''
 5     import time,datetime
 6     length = len(str(dateUnixString))
 7     if length == 10:
 8         try:
 9             date_String = datetime.datetime.fromtimestamp(dateUnixString).strftime(format_string)
10             return date_String
11         except Exception as e:
12             print(e)
13     elif length == 13:
14         try:
15             dateUnixString = int(dateUnixString)/1000                                                                      
16             date_String = datetime.datetime.fromtimestamp(dateUnixString).strftime(format_string)
17             return date_String
18         except Exception as e:
19             print(e)
20     else:print("Parameter is not available !!!")    

测试：