Python time.perf_counter_ns()用法及代码示例

Python time.perf_counter_ns() 函数以纳秒为单位给出时间的整数值。

用法：

from time import perf_counter_ns

我们可以使用 start 和 stop 函数找到经过的时间。我们还可以通过减去 stoptime 和 starttime 来找到整个程序中经过的时间

范例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')

输出：

范例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')

输出：

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注：本文由纯净天空筛选整理自manojkumarreddymallidi大神的英文原创作品 Python time.perf_counter_ns() Function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。