搜题
问题   更新时间2023/4/3 12:59:00

1.
(4分)判断char型变量c1是否小写字母的正确表达式为

A. .a.<=c1<=.z.
B. (c1>=.a.)&&(c1<=.z.)
C. (c1>=a)&&(c1<=z)
D. (.a.<=c1)||(.z.>=c1)

B. (c1>='a')&&(c1<='z')
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