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When I set this layout, I prompted an error from line 18
2022-02-03 00:49:34 【CSDN Q & A】
Refer to the answer 1：
Basic grammar , Attributes are used in methods or code blocks
Refer to the answer 2：
Refer to the answer 3：
Put this piece in main In the method
Refer to the answer 4：
author[CSDN Q & A],Please bring the original link to reprint, thank you.
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