实现上述功能的VB程序如下,请在划线处填入合适的代码。
Private Sub Command1_Click()
Dim s1 As String
Dim s2 As String
Dim s3 As String
Dim l1 As Integer
Dim l2 As Integer
Dim l3 As Integer
Dim a(1 To 100) As Integer
Dim b(1 To 100) As Integer
Dim c(1 To 100) As Integer
Dim t As Integer
s1 = Text1.Text
s2 = Text2.Text
l1 = Len(s1)
l2 = Len(s2)
For i = l1 To 1 Step -1
a(i) =
Next
For i = l2 To 1 Step -1
b(i) =Val(Mid(s2, l2 - i + 1, 1))
Next
If l1 > l2 Then l3 = l1 Else l3 = l2
t = 0
For i = 1 To l3
c(i) = a(i) + b(i) + t
t = c(i) \ 10
c(i) =
Next
For i = 1 To l3
s3 = Str(c(i)) + s3
Next
IfThen s3 = “1” + s3
Text3.Text = s3
End Sub
def f(x):
#定义方程
return x**3-x**2+x-1
a=float(input("请输入解区间的左边界:"))
b=float(input("请输入解区间的右边界:"))
while abs(b-a)>1e-6:
x0=(a+b)/2
if ():
b=x0
if ():
a=x0
if ():
break
print("解为:",x0)
input("运行完毕,请按回车键退出...")
s=0
for i in range(1,6,2):
s=s+i
print(s)
For i = 1 To Len(Text1.Text)
c = Mid(Text1.Text, i, 1)
If c >= "0" And c <= "9" Then
x = Val(c)
a((x + 1) Mod 10) = a((x + 1) Mod 10) + 1
End If
Next i
s = ""
For i = 0 To 9
s = s & a(i)
Next i
Text2.Text = s
数组元素a(0)到a(9)的值均为0,执行该程序段后,文本框Text2显示的内容为“1302000100”。则文本框Text1中输入的内容可能是( )
实现上述功能的VB程序如下。
Private Sub Command1_Click( )
Dim n As Integer, i As Integer
Dim b(1 To 8) As Integer
Dims As String
s="":n=Val(Text1. Text)
If n>=0 Then
For i=1 To 8
b(i)=n Mod 2:n=n\2
Next i
Else
n=Abs(n)
For i=1 To 8
b(i)=(n+1) Mod 2:n=n\2
Next i
b(1)=b(1)+1
i=1
Do While b(i)=2
b(i)=0
i=i+1
__________
Loop
End If
For i=8 To 1 Step-1
s=
Next i
Text2. Text=s
End Sub
Const n = 20
Dim a(1 To n) As Integer
Dim lena As Integer
'数组a的实际长度
Dim s As String
Private Sub Form_Load()
'生成lena个长度的非递减序列,并输出到文本框text1中,代码略
End Sub
Private Sub Command1_Click()
Dim i As Integer, j As Integer
i = 1
Do While i < lena
If a(i) <> a(i + 1) Then
i =
Else
For j = i + 1 To lena
a(j - 1) =
Next j
End If
Loop
s = ""
For i = 1 To lena
s = s + Str(a(i))
Next i
Text2.Text = s
End Sub
代码中“import music”表示导人music模块,它包含了生成和控制声音的方法,music.pitch(freq,8)表示播放设定频率的曲调,时间为8ns。下载并运行该代码,在蜂鸣器中听到的声音效果是( )
s=0: t=1
For i=1 to 10
t=t*i
s=s+t
Next i
For A=1 To 200 Step 4
S=S+A:
Next A
Print S
c=0
for i in range(1,20):
if i%2!=0 or i%3==0:
c=c+1
print(c)
Private Sub Command1_Click()
Dim s As String, ch As String
Dim i As Integer, k As Integer
Dim L As Integer, R As Integer
Dim temp As Integer, min As Integer
s = Text1.Text
i = 1: k = 0: temp = 0: min = 100
Do While i <= Len(s)
ch = Mid(s, i, 1)
If ch >= "0" And ch <= "9" Then
temp =
Else
k = k + 1
If Then
L = temp
Else
R = temp
If R - L + 1 < min Then min = R - L + 1
End If
temp = 0
End If
i = i + 1
Loop
Label2.Caption = "最短区间长度是" + Str(min)
End Sub
Private Sub Text1_Changeo( )
Dim k As Integer, i As Integer
k=Val(Text1.Text)
For i=1 To 3
If k<=9 Then k=k+i
Next i
Text1.Text=Str(k)
End sub
list=['a','b','c','d','e','f','g']
list1=[]
list2=[]
for i in range(7):
if i%2==0:
list1.append(list[i])
else:
list2.append(list[i])
print(list1)
print(list1)
word=["my","apple","Label","Name","nose","nice"]
n=0
for ch in word:
if ch[1]=="a":
n=n+1
print(ch,end=" ")
print(n)