c = Text1.Text
s1 = "jiayou!" s2 = s1 + s1
For i =1 to len(s1)
If c = Mid(s2, i, Len(s1)) Then Exit For
Next i
Label1.Caption = Str(i)
程序执行完后,Label1中显示的内容是4,则Text1中输入的内容是( )
A."jiayou!" | B."you!jia" | C."ayou!ji" | D."jayou!j" |

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

