A. LEFT("FoxPro",3)与SUBSTR("FoxPro",1,3)
B. YEAR(DATE())与SUBSTR(DTOC(DATE())7,2)
C. TYPE("36-5*4")与TYPE(36-5*4)
D. 假定A="This",B=" is a string"A-B与A+B
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A. LEFT("FoxPro",3)与SUBSTR("FoxPro",1,3)
B. YEAR(DATE())与SUBSTR(DTOC(DATE())7,2)
C. TYPE("36-5*4")与TYPE(36-5*4)
D. 假定A="This",B=" is a string"A-B与A+B
(责任编辑:admin) |