单项选择题
要清除所有开头字母为A的变量,应使用命令().
A.release all like a*
B.release all like a?
C.rele all except a?
D.release all except a*
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单项选择题
A.release all like a*
B.release all like a?
C.rele all except a?
D.release all except a*
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