Python time.perf_counter_ns()用法及代碼示例

Python time.perf_counter_ns() 函數以納秒為單位給出時間的整數值。

用法：

from time import perf_counter_ns

我們可以使用 start 和 stop 函數找到經過的時間。我們還可以通過減去 stoptime 和 starttime 來找到整個程序中經過的時間

範例1：

Python3


# import  perf_counter_ns()
from time import perf_counter_ns
  
# integer input from user, 2 input in single line
n, m = map(int, input().split())
  
# Start the stopwatch / counter
start = perf_counter_ns()
  
for i in range(n):
    t = int(input())  # user gave input n times
    if t % m == 0:
        print(t)
  
# Stop the stopwatch / counter
stop = perf_counter_ns()
  
print("Elapsed time:", stop, 'ns', start, 'ns')
  
print("Elapsed time during the whole program",
      stop-start, 'ns')

輸出：

範例2：

Python3


# import  perf_counter_ns()
from time import perf_counter_ns
  
# integer input from user, 2 input in single line
n, m = map(int, input().split())
  
# Start the stopwatch / counter
start = perf_counter_ns()
  
for i in range(n):
    t = int(input())  # user gave input n times
    if t % m == 0:
        print(t)
  
# Stop the stopwatch / counter
stop = perf_counter_ns()
  
print("Elapsed time:", stop, 'ns', start, 'ns')
  
print("Elapsed time during the whole program",
      stop-start, 'ns')

輸出：

相關用法

注：本文由純淨天空篩選整理自manojkumarreddymallidi大神的英文原創作品 Python time.perf_counter_ns() Function。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。