29 lines
448 B
Python
29 lines
448 B
Python
"""
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写文本文件
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将100以内的素数写入到文件中
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Version: 0.1
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Author: 骆昊
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Date: 2018-03-13
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"""
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from math import sqrt
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def is_prime(n):
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for factor in range(2, int(sqrt(n)) + 1):
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if n % factor == 0:
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return False
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return True
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# 试一试有什么不一样
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# with open('prime.txt', 'a') as f:
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with open('prime.txt', 'w') as f:
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for num in range(2, 100):
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if is_prime(num):
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f.write(str(num) + '\n')
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print('写入完成!')
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