阅读程序: Option Base 1 Dim arr()As Integer Private Sub Form_Click() Dim i As Integer,j As Integer ReDim arr(3,2) For i=1 To 3 For j=1 To 2 arr(i,j)=i*2+j Next j Next i ReDim Preserve arr(3,4) For j=3 To 4 arr(3,j)=j+9 Next j Print arr(3,2)+arr(3,4) End Sub 程序运行后,单击窗体,输入结果为______。A. 21B.13C.8D.25
阅读程序: Option Base 1 Dim arr()As Integer Private Sub Form_Click() Dim i As Integer,j As Integer ReDim arr(3,2) For i=1 To 3 For j=1 To 2 arr(i,j)=i*2+j Next j Next i ReDim Preserve arr(3,4) For j=3 To 4 arr(3,j)=j+9 Next j Print arr(3,2)+arr(3,4) End Sub 程序运行后,单击窗体,输入结果为______。
A. 21
B.13
C.8
D.25
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阅读程序: Option Base 1 Dim arr( )As Integer Private Sub Form_Click( ) Dim i AsInteger,j As Integer ReDim arr(3,2) For i=1 To 3 Forj=1 To 2 arr(i,j)=i*2+j Next j Next i ReDim Preserve arr(3,4) For j=3 To 4 arr(3,j)=j+9 Nextj Print arr(3,2)+arr(3,4) End Sub 程序运行后,单击窗体,输出结果为A.21B.13C.8D.25
阅读程序: Option Base 1 Dim art()As Integer Private Sub Form_Click() Dim i As Integer,j As Integer ReDim arr(3,2) For i=1 To 3 For j=1 To 2 arr(i,j)=i*2+j Next Next ReDim Preserve ale(3,4) For j=3 To 4 arr(3,j)=j+9 Next Print arr(3,2)+arr(3,4) End Sub 程序运行后,单击窗体,输出结果为A.21B.13C.8D.25
●若二维数组arr[1..M,1..N】的首地址为base,数组元素按列存储且每个元素占用K个存储单元,则元素arr[i,j]在该数组空间的地址为 (21)。(21)A. base+((i-1)*M+j-1)*KB.base+((i-1)*N+j-1)*KC.base+((j-1)*M+i-1)*KD.base+((j-1)*N+i-1)*K
●若二维数组arr[1..M,1..N]的首地址为base,数组元素按列存储且每个元素占用K个存储单元,则元素arr[i,j]在该数组空间的地址为(21)。(21)A.base+((i-1)*M+j-1)*KB.base+((i-1)*N+j -1)*KC.base+((j-1)*M+i-1)*KD. base+((j-1)*N+i-1)*K
● 若二维数组arr[1..M, 1..N]的首地址为base,数组元素按列存储且每个元素占用K个存储单元,则元素arr[i, j]在该数组空间的地址为 __ 。A.base+((i-1)*M+j-1)*KB.base+((i-1)*N+j-1)*KC. base+((j-1)*M+i-1)*KD. base+((j-1)*N+i-1)*K
● 若二维数组arr[1..M,1..N]的首地址为base,数组元素按列存储且每个元素占用K个存储单元,则元素arr[i,j]在该数组空间的地址为 (21) 。A.base+((i-1)*M+j-i)*KB.base+((i-1)*N+j-1)*KC.base+((j-1)*M+i-1)*KD.base+((j-1)*N+i-1)*K
若二维数组arr[1…M,1…N]的首地址为base,数组元素按列存储且每个元素占用K个存储单元,则元素arr[i,j]在该数组空间的地址为( )。A.base+((i一1)*M*j-i)*KB.b ase+((i-1)*N+j-1)*KC.baSe+((j-l)*M十i-1)*KD.base+((j-1)*N+i-1)*K
若二维数组arr[1..M,1..N]的首地址为base,数组元素按列存储且每个元素占用K个存储单元,则元素arr[i,j]在该数组空间的地址为______。A.base+((i-1)*M+j-1)*KB.base+((i-1)*N+j-1)*KC.base+((j-1)*M+i-1)*KD.base+((j-1)*N+i-1)*K
【多选题】(4-3)初始了如下二维数组,()能够遍历该二维数组。 int [ ][ ] arr={{3,4,5},{7,8,2},{1},{6,2,8}};A.for(int i=0;i<arr.length;i++) for(int j=0;j<arr.length;j++) System.out.println(arr[i][j]);B.for(int i=0;i<arr.length;i++) for(int j=0;j<arr[i].length;j++) System.out.println(arr[i][j]);C.for(int i=0;i<arr.length;i++) for(int x:arr[i]) System.out.println(x);D.for(int list:arr) for(int x:list) System.out.println(x);E.for(int[ ] list:arr) for(int x:list) System.out.println(x);
【分录题】(4-2)写出下面程序运行结果。 public class Demo2 { public static void main(String[] args) { int [][] arr=new int[3][3]; int sum=0; for(int i=0;i<arr.length;i++) for(int j=0;j<arr[i].length;j++) sum=sum+i+j; System.out.println(sum); } }