在Python 3.8+中进行了一些测试后，我注意到这些选项给出了完全相同的结果，至少在Windows 10中是这样。

import time

# Option 1
unix_time_ms_1 = int(time.time_ns() / 1000000)
# Option 2
unix_time_ms_2 = int(time.time() * 1000)

请随意使用你更喜欢的一个，我不认为有任何需要比这个更复杂的解决方案。

使用time.time ():

import time

def current_milli_time():
    return round(time.time() * 1000)

然后:

>>> current_milli_time()
1378761833768

更新:感谢@neuralmer。

最有效的方法之一:

(time.time_ns() + 500000) // 1000000  #rounding last digit (1ms digit)

or

time.time_ns() // 1000000          #flooring last digit (1ms digit)

在其他方法中，这两种方法都非常有效。

基准:

你可以在我自己的机器上看到一些不同方法的基准测试结果:

import time

t = time.perf_counter_ns()
for i in range(1000):
    o = time.time_ns() // 1000000           #each 200 ns
t2 = time.perf_counter_ns()
print((t2 - t)//1000)


t = time.perf_counter_ns()
for i in range(1000):
    o = (time.time_ns() + 500000) // 1000000  #each 227 ns
t2 = time.perf_counter_ns()
print((t2 - t)//1000)


t = time.perf_counter_ns()
for i in range(1000):
    o = round(time.time_ns() / 1000000)    #each 456 ns
t2 = time.perf_counter_ns()
print((t2 - t)//1000)


t = time.perf_counter_ns()
for i in range(1000):
    o = int(time.time_ns() / 1000000)      #each 467 ns
t2 = time.perf_counter_ns()
print((t2 - t)//1000)


t = time.perf_counter_ns()
for i in range(1000):
    o = int(time.time()* 1000)          #each 319 ns
t2 = time.perf_counter_ns()
print((t2 - t)//1000)

t = time.perf_counter_ns()
for i in range(1000):
    o = round(time.time()* 1000)       #each 342 ns
t2 = time.perf_counter_ns()
print((t2 - t)//1000)```

另一个解决方案是可以嵌入到您自己的utils.py中的函数

import time as time_ #make sure we don't override time
def millis():
    return int(round(time_.time() * 1000))

unix诞生的时间

from time import time
while True:
    print(str(time()*1000)+'ms       \r', end='')

程序开始的时间

from time import time
init = time()
while True:
    print(str((time()-init)*1000)+'ms         \r', end='')

谢谢你的宝贵时间

如果你想在你的代码中使用一个简单的方法，用datetime返回毫秒:

from datetime import datetime
from datetime import timedelta

start_time = datetime.now()

# returns the elapsed milliseconds since the start of the program
def millis():
   dt = datetime.now() - start_time
   ms = (dt.days * 24 * 60 * 60 + dt.seconds) * 1000 + dt.microseconds / 1000.0
   return ms