Dim x As Integer, result As String,p As String, k As String
result = "":p = Text1.Text:k = Text2.Text
For x = 1 To Len(p) -Len(k) + 1
If (1) Then
result = result + Mid(p, x, 1)
Else
(2)
End If
Next x
Text3.Text = (3)
上述程序段中横线处可选语句为:
① Mid(s, x, Len(k)) = k | ② Mid(s, x, Len(k)) <> k | ③ x = x + Len(k) – 1 |
④ x = x + Len(k) | ⑤ result + Mid(p, x) | ⑥ result |
A.①③⑤ |
B.②④⑥ |
C.②③⑤ |
D.①④⑥ |
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