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i = 1: j = 10
flag = True: k = 0
Key = Val(Text1.Text)
Do While i <= j And flag = True
m = (i + j) \ 2
If a(m) = Key Then
flag = False
ElseIf a(m) > Key Then
i = m + 1
k = k - 1
Else
j = m - 1
k = k + 1
End If
Loop
数组元素a(1)～a(10)的值依次为102,91,88,84,80,72,70,65,50,46,变量k的值最终为0，则文本框Text1中输入的数字可能是（ ）
| A．91 | B．87 | C．70 | D．50 |
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
