#範例10-3：：try-except-else-finally，完指令發生錯誤時的處理except，正確時的處理else, 最後結束的處理finally
#https://www.w3schools.com/python/python_try_except.asp
#https://www.w3school.com.cn/python/python_try_except.asp
#https://www.runoob.com/python/python-exceptions.html

#---------------
#1.練習：9/0，除到0顯示發生錯誤，正常除法顯示答案（完整結構：try-except-else-finally)
#a1 = 9/0
n1 = 9
n2 = 2



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#範例10-3：：try-except-else-finally，完指令發生錯誤時的處理except，正確時的處理else, 最後結束的處理finally
#https://www.w3schools.com/python/python_try_except.asp
#https://www.w3school.com.cn/python/python_try_except.asp
#https://www.runoob.com/python/python-exceptions.html

#---------------
#1.練習：9/0，除到0顯示發生錯誤，正常除法顯示答案（完整結構：try-except-else-finally)
#a1 = 9/0
n1 = 9
n2 = 2
try:
  a1 = n1/n2
except Exception as e:
  print("出現錯誤，原因=", e)
else:
  print(n1, "/", n2, "=", n1/n2)
finally:
  print("計算完成")
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