Dim a(1 To 1000) As Single, b(1 To 1000) As Integer Private Sub Form_Load()
Randomize '生成 1000 个随机数 For i = 1 To 1000
a(i) = ((Rnd * 99 + 0.05) * 1000 \ 10) / 100 + 1 '产生随机数,保留二位小数
b(i) = 1 '初始排位为 1
List1.AddItem "a(" & i & ")=" & a(i) Next i
End Sub
Private Sub Command1_Click()
Dim ks As Integer, js As Integer ks = Val(Text1.Text)
js = Val(Text2.Text) For i = ks To js
For j = ks To js
If a(j) < a(j-1) Then b(i) = b(i) + 1
Next j
List2.AddItem "a(" & i & ")" & "在 a(" & ks & ")~a(" & js & ")中排位为" & b(i) Next i
End Sub
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2