After reading the code, there are no errors, but bool (false) still appears. Why?

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I got bool(false)

After reading the code, there is no error, but bool(false) still appears

Why is this?

ㅤ2275 days ago1519

ㅤ2018-08-21 09:49:45

solved

Can you tell me how to solve it?

— 移动用户-6778816 · 2019-02-26 22:05:09

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