Python time.mktime()用法及代碼示例

time.mktime()Time模塊的方法用於將time.struct_time對象或包含與time.struct_time對象相對應的9個元素的元組轉換為自本地時間開始經過的秒數。

此方法是time.localtime()它將自紀元以來的秒數表示的時間轉換為本地時間中的time.struct_time對象。

以下是time.struct_time對象中存在的值：

index	屬性	值
0	tm_year	(例如，1993年)
1個	tm_mon	範圍[1，12]
2	tm_mday	範圍[1，31]
3	tm_hour	範圍[0，23]
4	tm_min	範圍[0，59]
5	tm_sec	範圍[0，61]
6	tm_wday	範圍[0，6]，星期一為0
7	tm_yday	範圍[1，366]
8	tm_isdst	0、1或-1
不適用	tm_zone	時區名稱的縮寫
不適用	tm_gmtoff	以秒為單位偏移UTC以東

注意：紀元是時間開始的時間點，它取決於平台。在Windows和大多數Unix係統上，紀元是1970年1月1日，00：00：00(UTC)，leap秒不計入自紀元以來的秒數。要檢查給定平台上的紀元，我們可以使用time.gmtime(0)。

用法： time.mktime(t)

參數：
t：一個time.struct_time對象或包含9個與time.struct_time對象相對應的元素的元組

返回類型：此方法返回一個浮點值，該值表示自紀元以來以秒表示的時間。

代碼1：用於time.mktime()方法

# Python program to explain time.mktime() method  
    
# importing time module  
import time  
  
  
# time.gmtime() method will returns 
# a time.struct_time object in UTC 
# for the time expressed in seconds 
# since the epoch 
seconds = 1000000
obj1 = time.gmtime(seconds) 
  
# Print time.struct_time object (in UTC) 
print(obj1) 
  
# Convert the time.struct_time 
# object to local time expressed in 
# seconds since the epoch 
# using time.mktime() method 
time_sec = time.mktime(obj1) 
  
# Print the local time in seconds 
print("\nLocal time (in seconds):", time_sec) 
  
  
# time.strptime() method parse  
# a string representing a time 
# according to the given format 
# and returns a time.struct_time object 
  
# Time string  
t = "14 Sep 2019 10:50:00"
  
# Parse the time string using 
# time.strptime() method 
obj2 = time.strptime(t, "% d % b % Y % H:% M:% S") 
  
# Convert the time.struct_time 
# object to local time expressed in 
# seconds since the epoch 
# using time.mktime() method 
time_sec = time.mktime(obj2) 
  
# Print the local time in seconds 
print("\nLocal time (in seconds):", time_sec)

輸出：

time.struct_time(tm_year=1970, tm_mon=1, tm_mday=12, tm_hour=13, tm_min=46,
tm_sec=40, tm_wday=0, tm_yday=12, tm_isdst=0)

Local time (in seconds):980200.0

Local time (in seconds):1568438400.0

代碼2：如果參數是元組

# Python program to explain time.mktime() method  
    
# importing time module  
import time  
  
  
# A tuple containing 9 elements 
# corresponding to time.struct_time object 
# for example:consider the below object 
# time.struct_time(tm_year = 2019, tm_mon = 9, tm_mday = 13,  
# tm_hour = 1, tm_min = 30, tm_sec = 26, tm_wday = 4, 
# tm_yday = 256, tm_isdst = 0) 
  
# Tuple corresponding to above  
# time.struct_time object will be 
tup = (2019, 9, 13, 1, 30, 26, 4, 256, 0) 
  
# Convert the above specified tuple 
# to local time expressed in seconds 
# since the epoch  
# using time.mktime() method 
time_sec = time.mktime(tup) 
  
# Print the time 
print("Local Time (in seconds since the epoch):", time_sec)

輸出：

Local Time (in seconds since the epoch):1568318426.0

代碼3：顯示time.mktime()方法是...的反函數time.localtime()方法

# Python program to explain time.mktime() method  
    
# importing time module  
import time  
    
# Get the current time 
# expressed in seconds  
# since the epoch using 
# time.time() method 
curr_time = time.time()  
  
# Print the value 
# returned by time.time() method 
print("Current time (in seconds since the epoch):", curr_time) 
  
  
# Convert the time expressed in seconds 
# since the epoch to 
# a time.struct_time object 
# in local time using 
# time.localtime() method  
obj = time.localtime(curr_time) 
  
# Print the time.struct_time object 
print("\ntime.struct_time object:") 
print(obj, "\n") 
  
  
# Convert the time.struct_time object 
# back to the time expressed 
# in seconds since the epoch 
# in local time using 
# time.mktime() method 
time_sec = time.mktime(obj) 
  
# Print the time 
print("Time (in seconds since the epoch):", time_sec)

輸出：

Current time (in seconds since the epoch):1568318426.2286296

time.struct_time object:
time.struct_time(tm_year=2019, tm_mon=9, tm_mday=13, tm_hour=1, tm_min=30,
tm_sec=26, tm_wday=4, tm_yday=256, tm_isdst=0) 

Time (in seconds since the epoch):1568318426.0

參考文獻： https://docs.python.org/3/library/time.html#time.mktime

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注：本文由純淨天空篩選整理自ihritik大神的英文原創作品 Python | time.mktime() method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。