i =1:j = 10: n=0: flag = True
Key = Val (text1.Text)
Do While i<=j And flag=True
n=n+1
m=(i+j)\2
If a(m) = Key Then flag = False
If Key > a(m) Then i = m+1 Else j=m-1
Loop
数组元素a(1)到a(10)的值依次是:“5,12,23,29,34,48,51,67,70,89”,key值为57时,运行结束后下列说法正确的是( )