1、以下哪个选项是判断ch是否为大写字母的正确形式?

A.ch >= 'A' && ch <='Z' B.ch <= 'Z' && ch >= 'A' C.'A' <= ch <= 'Z' D.ch >= 'A' || ch <= 'Z' E.ch >='A' AND ch <='Z' F.ch BETWEEN 'A' AND 'Z"

时间:2024-04-30 14:59:57

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