Python 关键字 except
实例
如果该语句引发错误，则表示“Something went wrong"”：
try:
x > 3
except:
print("Something went wrong")
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定义和用法
except关键字用于try ...except块。它定义了try块引发错误时要运行的代码块。
您可以为不同的错误类型定义不同的块，如果没有出错则执行块，请参见下面的示例。
更多实例
实例
如果是NameError则显示一条消息，如果是TypeError则写另一条消息：
x = "hello"
try:
x > 3
except NameError:
print("You have a variable that is not defined.")
except TypeError:
print("You are comparing values of different type")
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实例
执行错误，但没有定义错误的类型（在本例中应为ZeroDivisionError）：
try:
x = 1/0
except NameError:
print("You have a variable that is not defined.")
except TypeError:
print("You are comparing values of different type")
except:
print("Something else went wrong")
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实例
如果没有引发错误，打印一条消息：
x = 1
try:
x > 10
except NameError:
print("You have a variable that is not defined.")
except TypeError:
print("You are comparing values of different type")
else:
print("The 'Try' code was executed without raising any errors!")
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相关页面
try关键字。
finally关键字。
