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try-except存在的意义

不明白try-except存在的意义，语句报错了,用了try-except只是用except语句print一下错误信息，我不try-except运行也是报红色错误（except的优势只是自定义了print错误信息）。总而言之，语句出错都得改，不try-except运行我也能知道代码有问题，那么try-except的意义在哪里？

足迹666

2016-12-16

源自：Python错误和异常 2-6

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weixin_慕工程1563154
2022-03-30

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0 回复有任何疑惑可以回复我~

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weibo_哥哥立正向前走了_0
2017-09-28

try_except是为了让用户知道出了什么错误，然后根据错误信息改正操作

2 回复有任何疑惑可以回复我~

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Dieter_Lan
2017-09-10

因为代码量比较小你可能可以知道代码错在哪里，但是几千几万行代码的时候有 try except 就能更好的定位了。

3 回复有任何疑惑可以回复我~

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初旭save
2016-12-16

我是会计专业听课自学Python，可能解释不够专业，我课程听下来自己的理解是这样的：1、用try-except可以将错误定位的更加精确，系统的代码可能会定位在错误的附近，并不精确。2、即使print出错误以后还可以把代码继续执行下去，这样效率会更高吧。我不专业，也不知道解释的对不对，如果不对请多多指正哦~

0 回复有任何疑惑可以回复我~

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__没有人

我还是做药专业的(￣y▽￣)~*捂嘴偷笑，兴趣是不分专业的

2017-06-03 回复有任何疑惑可以回复我~