elapsed_time = time.perf_counter() - self._start_time self._start_time = None if self.logger: self.logger(self.text.format(elapsed_time)) if self.name: self.timers[self.name] += elapsed_time return elapsed_time 注意,在向.timers中添加新的Python计时器时,使用了.setdefault()方法。它只在...
print("Elapsed time: {:.2f} seconds".format(elapsed_time)) 1. 四、状态图 以下是使用Mermaid语法创建的状态图,展示了整个流程: 导入time模块获取当前时间执行代码再次获取当前时间计算时间差输出结果ImportTimeModuleGetStartTimeExecuteCodeGetEndTimeCalculateElapsedTimePrintResult 五、序列图 以下是使用Mermaid语法...
def __init__(self, text="Elapsed time: {:0.4f} seconds"): self._start_time = None self.text = text 1. 2. 3. 4. 注意,默认文本"Elapsed time: {:0.4f} seconds"是作为一个常规字符串给出的,而不是f-string。这里不能使用f-string,因为f-string会立即计算,当你实例化Timer时,...
importtime# 步骤1:记录程序开始时间start_time=time.time()# 步骤2:执行待测程序defcalculate_sum():sum=0foriinrange(1000000):sum+=ireturnsumresult=calculate_sum()# 步骤3:记录程序结束时间end_time=time.time()# 步骤4:计算运行时间差elapsed_time=end_time-start_time# 步骤5:输出运行时间elapsed_tim...
if self._start_time is not None: raise TimerError(f"Timer is running. Use .stop() to stop it") self._start_time = time.perf_counter() def stop(self): """Stop the timer, and report the elapsed time""" if self._start_time is None: ...
self._start_time = time.perf_counter() def stop(self) -> float: """Stop the timer, and report the elapsed time""" if self._start_time is None: raise TimerError(f"Timer is not running. Use .start() to start it") # Calculate elapsed time ...
import timeit# print addition of first 1 million numbersdef addition(): print('Addition:', sum(range(1000000)))# run same code 5 times to get measurable datan = 5# calculate total execution timeresult = timeit.timeit(stmt='addition()', globals=globals(), number=n)# calculate the exe...
result_sum, result_difference, result_product = calculate(3, 5) print(result_sum) # 输出: 8 print(result_difference) # 输出: -2 print(result_product) # 输出: 15 在这个示例中,函数calculate返回了三个值(和、差、积),调用函数时,通过元组解包将返回的多个值分别赋给不同的变量。
elapsed_time = end_time - start_time print(f"{self.func.__name__} 调用第 {self.call_count} 次,耗时: {elapsed_time:.6f} 秒") return result # 使用装饰器工厂创建装饰器 @PerformanceMonitor def calculate_sum(n): """计算从 1 到 n 的和""" ...
The Python time module is a powerful tool for working with times and dates in both simple and complex ways, allowing you to easily manipulate dates, format strings, calculate durations, and more. You can make your programming tasks much easier if you know how to use the time module effective...