28 lines
532 B
Python
28 lines
532 B
Python
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#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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"""
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Topic: 手动遍历迭代器
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Desc :
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"""
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def manual_iter():
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with open('/etc/passwd') as f:
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try:
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while True:
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line = next(f)
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print(line, end='')
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except StopIteration:
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pass
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def manual_iter2():
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with open('/etc/passwd') as f:
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while True:
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line = next(f)
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if line is None:
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break
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print(line, end='')
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if __name__ == '__main__':
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manual_iter()
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