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try-except存在的意義

不明白try-except存在的意義，語句報錯了,用了try-except只是用except語句print一下錯誤信息，我不try-except運行也是報紅色錯誤（except的優勢只是自定義了print錯誤信息）?？偠灾?，語句出錯都得改，不try-except運行我也能知道代碼有問題，那么try-except的意義在哪里？

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4 回答

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0 回復 有任何疑惑可以回復我~

try_except是為了讓用戶知道出了什么錯誤，然后根據錯誤信息改正操作

2 回復 有任何疑惑可以回復我~

因為代碼量比較小你可能可以知道代碼錯在哪里，但是幾千幾萬行代碼的時候有 try except 就能更好的定位了。

3 回復 有任何疑惑可以回復我~

我是會計專業聽課自學Python，可能解釋不夠專業，我課程聽下來自己的理解是這樣的：1、用try-except可以將錯誤定位的更加精確，系統的代碼可能會定位在錯誤的附近，并不精確。2、即使print出錯誤以后還可以把代碼繼續執行下去，這樣效率會更高吧。我不專業，也不知道解釋的對不對，如果不對請多多指正哦~

0 回復 有任何疑惑可以回復我~
#1

__沒有人

我還是做藥專業的(￣y▽￣)~*捂嘴偷笑，興趣是不分專業的
2017-06-03 回復 有任何疑惑可以回復我~

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