表达式LEN(SUBSTR("1234586",5,1))*Len("visualFoxPro")的结果是

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表达式LEN(SUBSTR("1234586",5,1))*Len("visualFoxPro")的结果是表达式LEN(SUBSTR("1234586",5,1))*Len("visualFoxPro

表达式LEN(SUBSTR("1234586",5,1))*Len("visualFoxPro")的结果是
表达式LEN(SUBSTR("1234586",5,1))*Len("visualFoxPro")的结果是

表达式LEN(SUBSTR("1234586",5,1))*Len("visualFoxPro")的结果是
Len("visualFoxPro") = 12
LEN(SUBSTR("1234586",5,1)) = 1
12*1 = 12