---假定矩陣各元素之初始值(由0開始)---
Private Sub Command1_Click()

M(1, 1) = 0: M(1, 2) = 0: M(1, 3) = 0: M(1, 4) = 0: M(1, 5) = 0: M(1, 6) = 0: M(1, 7) = 0: M(1, 8) = 0: M(1, 9) = 0: M(1, 10) = 0: M(1, 11) = 0
M(2, 1) = 0: M(2, 2) = 0: M(2, 3) = 0: M(2, 4) = 0: M(2, 5) = 0: M(2, 6) = 0: M(2, 7) = 0: M(2, 8) = 0: M(2, 9) = 0: M(2, 10) = 0: M(2, 11) = 0
M(3, 1) = 0: M(3, 2) = 0: M(3, 3) = 0: M(3, 4) = 0: M(3, 5) = 0: M(3, 6) = 0: M(3, 7) = 0: M(3, 8) = 0: M(3, 9) = 0: M(3, 10) = 0: M(3, 11) = 0
M(4, 1) = 0: M(4, 2) = 0: M(4, 3) = 0: M(4, 4) = 0: M(4, 5) = 0: M(4, 6) = 0: M(4, 7) = 0: M(4, 8) = 0: M(4, 9) = 0: M(4, 10) = 0: M(4, 11) = 0
M(5, 1) = 0: M(5, 2) = 0: M(5, 3) = 0: M(5, 4) = 0: M(5, 5) = 0: M(5, 6) = 0: M(5, 7) = 0: M(5, 8) = 0: M(5, 9) = 0: M(5, 10) = 0: M(5, 11) = 0
M(6, 1) = 0: M(6, 2) = 0: M(6, 3) = 0: M(6, 4) = 0: M(6, 5) = 0: M(6, 6) = 0: M(6, 7) = 0: M(6, 8) = 0: M(6, 9) = 0: M(6, 10) = 0: M(6, 11) = 0
M(7, 1) = 0: M(7, 2) = 0: M(7, 3) = 0: M(7, 4) = 0: M(7, 5) = 0: M(7, 6) = 0: M(7, 7) = 0: M(7, 8) = 0: M(7, 9) = 0: M(7, 10) = 0: M(7, 11) = 0
M(8, 1) = 0: M(8, 2) = 0: M(8, 3) = 0: M(8, 4) = 0: M(8, 5) = 0: M(8, 6) = 0: M(8, 7) = 0: M(8, 8) = 0: M(8, 9) = 0: M(8, 10) = 0: M(8, 11) = 0
M(9, 1) = 0: M(9, 2) = 0: M(9, 3) = 0: M(9, 4) = 0: M(9, 5) = 0: M(9, 6) = 0: M(9, 7) = 0: M(9, 8) = 0: M(9, 9) = 0: M(9, 10) = 0: M(9, 11) = 0
M(10, 1) = 0: M(10, 2) = 0: M(10, 3) = 0: M(10, 4) = 0: M(10, 5) = 0: M(10, 6) = 0: M(10, 7) = 0: M(10, 8) = 0: M(10, 9) = 0: M(10, 10) = 0: M(10, 11) = 0
M(11, 1) = 0: M(11, 2) = 0: M(11, 3) = 0: M(11, 4) = 0: M(11, 5) = 0: M(11, 6) = 0: M(11, 7) = 0: M(11, 8) = 0: M(11, 9) = 0: M(11, 10) = 0: M(11, 11) = 0

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For i = 1 To 11
    For j = 1 To 11
    M(i, j) = 0
Next j, i