32 lines
956 B
Markdown
32 lines
956 B
Markdown
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---
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title: Exceptions and Errors Handling
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localeTitle: 异常和错误处理
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---
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## 异常和错误处理
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在创建程序时，我们可能会犯错，最终会出现错误，而最糟糕的程序会停止运行， 如果我们在代码中找不到错误或错误，那会更烦人。 简单来说，错误是程序员在编写程序时避免的。 要在python中解决这个问题，我们可以使用`try`和`except`
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例：
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```shell
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>>> try:
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>>> . . . print "this is not a string "+1
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>>> except:
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>>> . . . print "error"
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error
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```
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如果您想从代码中更详细地获取错误消息，可以添加`except Exception as err`参数`except Exception as err`
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```shell
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>>> try:
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>>> . . . print "this is not a string "+1
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>>> except Exception as err:
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>>> . . . print "error:\n"+str(err)
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error:
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cannot concatenate 'str' and 'int' objects
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```
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更多信息：
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错误和例外[文档](https://docs.python.org/2/tutorial/errors.html) 。
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