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I can't rely on the user. I want to make sure I get a float in it, so how do I do that?
我想确保这儿我得到的是一个浮点数,我该怎么做呢？
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And what do I do if I get a key error?
如果我得到了关键字错误该怎么办呢？
应用推荐
$firstVoiceSent
- 来自原声例句