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Mid([学生编号],3,4)=“03” Mid([学生编号],3,2)=“03” Mid(“学生编号”3,4)=“03” Mid(“学生编号”,3,2)=“03”
B=Mid(A,3,2) B=Right(Left(A,4),2) B=Left(Right(A,4),2) A),B)和C)
Mid(S,3,2) Middle(S,3,2) Left(S,3,2) Right(S,3,2)
Mid(S,3,2) Middle(S,3,2) Left(S,3,2) Right(S,3,2)
Mid([学生编号1,3,4):"03" Mid([学生编号],3,2)= "03" Mid("学生编号",3,4)= "03" Mid("学生编号",3,2)= "03"
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Mid([学生编号],3,4)="03" Mid([学生编号],3,2)="03" Mid("学生编号",3,4)="03" Mid("学生编号",3,2)="03/
Mid([学生编号],3,4)="03" Mid([学生编号],3,2)="03" Mid("学生编号"3,4)="03" Mid("学生编号",3,2)="03"