Python 输出指定范围内的素数
Python 3 教程
· 2019-02-12 11:43:11
素数(prime number)又称质数,有无限个。除了1和它本身以外不再被其他的除数整除。
以下实例可以输出指定范围内的素数:
实例(Python 3.0+)
#!/usr/bin/python3
# 输出指定范围内的素数
# take input from the user
lower = int(input("输入区间最小值: "))
upper = int(input("输入区间最大值: "))
for num in range(lower,upper + 1):
# 素数大于 1
if num > 1:
for i in range(2,num):
if (num % i) == 0:
break
else:
print(num)
执行以上程序,输出结果为:
$ python3 test.py 输入区间最小值: 1 输入区间最大值: 100 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97
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