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异常

除法,除数为零报错 ZeroDivisionError: division by zero 。抛出异常后, Python 中断运行,不继续。

print(1)

print(1 / 0)

print(2)
1
Traceback (most recent call last):
    print(1 / 0)
ZeroDivisionError: division by zero

使用 try...except 处理异常。

print(1)

try:
    print(2)
    print(1 / 0)
    print(3)
except:
    print('除法错误')

print(4)
1
2
除法错误
4

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