Here is a Python program to print prime numbers from 1 to n. def sieve_of_eratosthenes(n): primes = [True] * (n + 1) p = 2 while p**2 <= n: if primes[p]: for i in range(p**2, n + 1, p): primes[i] = False p += 1 for p in range(2, n + 1): if primes[...
""" 输出100以内的素数 Version: 1.0 Author: 骆昊 """ for num in range(2, 100): is_prime = True for i in range(2, int(num ** 0.5) + 1): if num % i == 0: is_prime = False break if is_prime: print(num) 例子2:斐波那契数列 要求:输出斐波那契数列中的前20个数。 说明...
num = 407 # To take input from the user #num = int(input("Enter a number: ")) if num == 0 or num == 1: print(num, "is not a prime number") elif num > 1: # check for factors for i in range(2,num): if (num % i) == 0: print(num,"is not a prime number") pri...
One of the simplest ways to check if a number is prime or not in Python is by iterating from 2 to n-1 and checking if n is divisible by any of these numbers. Here is an example of the complete Python program. def is_prime_basic(n): if n <= 1: return False for i in range(...
n=foriinrange(,,):k=whilek<=i/:j=i-k flag1=prime(k)#调用prime函数ifflag1:#如果k为素数 flag2=prime(j)#调用prime函数ifflag2:#如果k和j都是素数print(i,'=',k,'+',j)#输出结果 n+=k=k+ 结果如下。 在这里插入图片描述 ...
for x in range(2,n): if n%x==0: print(n,'equal',x,'*',n//x) break else: #loop fell through without finding a factor print(n,'is a prime number') >>> 2 is a prime number 3 is a prime number 4 equal 2 * 2 5 is a prime number ...
1、print语法格式 print()``函数具有丰富的功能,详细语法格式如下:print(value, ..., sep=' ',end='\n', file=sys.stdout,flush=False) 默认情况下,将值打印到流或``sys.stdout``。 可选关键字参数: file``:类文件对象(``stream``)``;``默认为当前的``sys.stdout``。
# 判断一个数是否是偶数 def is_even(number): if number % 2 == 0: return True else: return False # 测试函数 print(is_even(4)) # 输出 True print(is_even(7)) # 输出 False 将数拆分成两个或多个部分 # 将数拆分成两个或多个部分 def number_decomposition(number): for i in range(1...
Back to normal. ① 上下文管理器是LookingGlass的一个实例;Python 在上下文管理器上调用__enter__,结果绑定到what。 ② 打印一个str,然后打印目标变量what的值。每个print的输出都会被反转。 ③ 现在with块已经结束。我们可以看到__enter__返回的值,保存在what中,是字符串'JABBERWOCKY'。
importjava.util.Scanner;publicclassHappyProgram{publicstaticvoidmain(String args[]){Scannerinput_a=newScanner(System.in); System.out.print("Enter a number: ");intYourNumber=input_a.nextInt();if(YourNumber >10) System.out.println("Your number is greater than ten") ;if(YourNumber <=10) ...