锡箔纸不能放在微波炉里。锡箔纸属于金属且电阻较低，微波炉又对金属有反射作用，因此不能放进去。如果将锡箔纸放进微波炉，轻则导致微波炉加热不均、效率变低，重则使微波炉产生火花，引起危险，更严重时还会损坏磁
Is it possible to define operators for enums? For example I have enum Month in my 开发者_运维知识库class and I would like to be able to write ++my_month.
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