# Function to calculate the factorial of a number def factorial(n): fact = 1 for i in range(1, n + 1): fact *= i return fact print(factorial(5)) Output: Explanation: Here, the factorial() function calculates the product of all numbers from 1 to n using a loop Function to Reve...
For example, the factorial of 6 is 1*2*3*4*5*6 = 720. Factorial is not defined for negative numbers, and the factorial of zero is one, 0! = 1. Factorial of a Number using Loop # Python program to find the factorial of a number provided by the user. # change the value for a...
a =1/0ZeroDivisionError: division by zero 在Python中,把这种运行时产生错误的情况叫做异常(Exceptions)。 异常处理机制 异常处理机制己经成为衡量一门编程语言是否成熟的标准之一,使用异常处理机制的Python程序具有更好的容错性,更加健壮。 try except异常处理 Python提供了try except语句捕获并处理异常,该异常处理语句...
2. Find factorial using RecursionTo find the factorial, fact() function is written in the program. This function will take number (num) as an argument and return the factorial of the number.# function to calculate the factorial def fact(n): if n == 0: return 1 return n * fact(n -...
import logging logging.basicConfig(level=logging.DEBUG, format=' %(asctime)s - %(levelname)s- %(message)s') logging.debug('Start of program') def factorial(n): logging.debug('Start of factorial(%s%%)'%(n)) logging.debug('i is '+ str(i)+ ...
deffactorial(n,acc=1):"calculate a factorial"ifn==0:returnaccreturnfactorial(n-1,n*acc)printfactorial(10000) 为了更清晰的展示开启尾递归优化前、后调用栈的变化和tail_call_optimized装饰器抛异常退出递归调用栈的作用, 我这里利用pudb调试工具做了动图 开启尾递归...
# Python program to explain time.clock() method# importing time moduleimporttime# Function to calculate factorial# of the given numberdeffactorial(n):f =1foriinrange(n,1,-1): f = f * ireturnf# Get the current processor time# in seconds at the# beginning of the calculation# using time...
将for i in range(n + 1):行改为for i in range(1、n + 1):,再次运行程序。输出将如下所示: 2019-05-23 17:13:40,650 - DEBUG - Start of program 2019-05-23 17:13:40,651 - DEBUG - Start of factorial(5) 2019-05-23 17:13:40,651 - DEBUG - i is 1, total is 1 ...
# Python program for sum of the# cubes of first N natural numbers# Getting input from userN=int(input("Enter value of N: "))# calculating sum of cubessumVal=(int)(pow(((N*(N+1))/2),2))print("Sum of cubes =",sumVal) ...
for i in range(n+1): total*=i logging.debug('i is '+str(i)+',total is '+str(total)) logging.debug('End of factorial (%s%%)'%(n)) print(factorial(5)) logging.debug('End of program') ''' logging.debug()调用不仅打印出传递给它的字符串,而且包含一个时间戳和单词DEBUG ...