22 lines
557 B
Python
22 lines
557 B
Python
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"""
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异常机制 - 处理程序在运行时可能发生的状态
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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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input_again = True
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while input_again:
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try:
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a = int(input('a = '))
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b = int(input('b = '))
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print('%d / %d = %f' % (a, b, a / b))
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input_again = False
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except ValueError:
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print('请输入整数')
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except ZeroDivisionError:
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print('除数不能为0')
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# 处理异常让代码不因异常而崩溃是一方面
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# 更重要的是可以通过对异常的处理让代码从异常中恢复过来
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