time() print(f"Function {self.func.__name__} took {end_time - start_time} seconds to run.") return result Python Copy在这个示例中,我们定义了一个名为Timer的类,它接受一个函数作为参数。在__call__()方法中,我们记录了函数执行前后的时间,并打印出执行的耗时。现在,我们
print(f"{self.func.__name__} executed in {end_time - start_time:.4f}s") return result @TimerDecorator def example_function(): time.sleep(1) print("Function executed") example_function() 在这个例子中,TimerDecorator类通过__call__方法实现了装饰器逻辑 ,测量并打印了被装饰函数example_function...
def __call__(self, *args, **kwargs): self.call_count += 1 # 记录一次调用 start_time = time.time() # 调用原始函数 result = self.func(*args, **kwargs) end_time = time.time() elapsed_time = end_time - start_time print(f"{self.func.__name__} 调用第 {self.call_count} 次...
(CALL_TIMES): tasks.append(connect_url_by_session(session, url)) results = await asyncio.gather(*tasks) return results if __name__ == "__main__": url = "http://127.0.0.1:5000/test" t1 = time.time() run_connect_url(url) print(f"串行调用次数: {CALL_TIMES},耗时:{time.time()...
__call__:函数调用 代码语言:txt AI代码解释 __add__:加运算 代码语言:txt AI代码解释 __sub__:减运算 代码语言:txt AI代码解释 __mul__:乘运算 代码语言:txt AI代码解释 __div__:除运算 代码语言:txt AI代码解释 __mod__:求余运算 代码语言:txt AI代码解释 __pow__:乘方 运算符重载 Python同样...
再来看看类装饰器,相比函数装饰器,类装饰器具有灵活度大、高内聚、封装性等优点。使用类装饰器还可以依靠类内部的__call__方法,当使用 @ 形式将装饰器附加到函数上时,就会调用此方法。 class Foo(object): def __init__(self, func): self._func = func ...
在Python里,一个可调用对象是能使用一对圆括号和一系列可选参数调用的对象。函数、类和方法都是Python里可调用对象的常见例子。除了这些,你还可以创建自定义的产生可调用实例的类。为了做到这一点,你得把.__call__()特殊方法加到你的类里。 含有方法的类的实例就跟函数类似,让你能灵活便捷地给对象添加功能。作...
runtime=end_time-begintime logger.info('ran %s cost %.3f s'%(func.__name__, runtime)) return_call classbss(object): @time_count()# 直接进行调用 defrunfunc(self): time.sleep(3) print'runfunc running' bs=bss() bs.runfunc() ...
""" return "" def clock(): # real signature unknown; restored from __doc__ """ clock() -> floating point number Return the CPU time or real time since the start of the process or since the first call to clock(). This has as much precision as the system records. """ return 0....
get/set_parameter – get or set run-time parameters Y - begin/commit/rollback/savepoint/release – transaction handling Y - get – get a row from a database table or view Y - insert – insert a row into a database table Y - update – update a row in a database table Y - upsert...