i= 1:length = n
Do While i < length
j=i+ 1
Do While j <= length
If a(i) = a(j) Then
For m=j+ 1 To length
Next m
length = length- 1
Else
End If
Loop
i=i+1
输出a(1)至a(lengh)的值,代码略
上述程序段两个方框处的语句分别为( )