晓英振辉奇葩计算机.docx

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晓英振辉奇葩计算机.docx

晓英振辉奇葩计算机

(红色加粗是检索词,绿色是备注)

PublicClassForm1

PrivateSubForm1_Click(ByValsenderAsObject,ByValeAsSystem.EventArgs)HandlesMe.Click

Dimvar1AsInteger,var2AsString

var1=12345

var2=InputBox("输入Var2=","输入对话框")

MsgBox(var2&Chr(13)+Chr(10)&"var1="&Str(var1))

'MsgBox(var2&vbCrLf&"var1="&Str(var1))

EndSub

EndClass

定义不同变量

PublicClassForm1

PrivateSubButton1_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton1.Click

DimaAsShort‘短型

DimbAsSingle‘单精度

DimcAsInteger‘整型

DimdAsDate

Dime1AsString

DimfAsBoolean‘判断

DimgAsString

DimhAsDouble‘双精度

DimiAsSingle

Dimj(4,3)AsInteger

a=3.25

b=546.2

c=5383149

d=#12/31/2003#

e1="ABCDEF"

f=False

g="123456"

h=3.24E+100

i=1.2563E+15

j(0,0)=456

MsgBox(a&vbCrLf&b&vbCrLf&c&vbCrLf&d&vbCrLf&e1&vbCrLf&f&vbCrLf&g&vbCrLf&h&vbCrLf&i&vbCrLf&j(0,0))

EndSub

分析不同表达式,定义并输出结果

PrivateSubButton2_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton2.Click

Dimx21,x22,x23,x24AsSingle

Dimx25,x27,x28AsBoolean

Dimx26AsString

x21=Sqrt(3^2/(2*4))‘开方

x22=+Abs(0.123-3)‘绝对值

x23=-Sin(30)

x24=Exp(6)+Log(2.135)‘e的6次方

x25=89&12<>8912

x26="AB"+Str(32.56)+"CD"

'x27=Mid("student",5)="ent"And(5>2)‘右边数三位

x27=Microsoft.VisualBasic.Right("student",3)="ent"And(5>2)

x28=Not(6>2)Or(7<9)

MsgBox(x21&vbCrLf&x22&vbCrLf&x23&vbCrLf&x24&vbCrLf&x25&vbCrLf&x26&vbCrLf&x27&vbCrLf&x28)

EndSub

一百以内随机数

PrivateSubButton3_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton3.Click

DimyAsInteger

y=Int(Rnd()*100)

MsgBox(y)

EndSub

任意字符串测长度

PrivateSubButton4_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton4.Click

DimyAsString

Dimy1AsInteger

y="VB程序设计语言"

y1=Len(y)

MsgBox(y&"长度为"&y1)

EndSub

给出字符串查片段位置

PrivateSubButton5_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton5.Click

DimyAsInteger

y=InStr("abcstudent","stu")

MsgBox(y)

EndSub

除去字符串两边空格

PrivateSubButton6_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton6.Click

DimyAsString

y=Trim("VisualC++")

MsgBox("去除左边空格"&y&"去除右边空格")

EndSub

测字符串所占字节数

PrivateSubButton7_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton7.Click

DimyAsString

Dimy1AsInteger

y="VB程序设计语言"

y1=Len(y)*2‘字符串长度×2

MsgBox(y&"字节数为"&y1)

EndSub

字符串反序排列

PrivateSubButton8_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton8.Click

Dimy,y1AsString

y="我去资料室查资料"

y1=StrReverse(y)

MsgBox(y1)

EndSub

从字符串中截取字符

PrivateSubButton9_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton9.Click

Dimy,y1AsString

y="我去资料室查资料"

y1=Mid(y,3,3)‘左边数第三个,数三个

MsgBox(y1)

EndSub

截取字符

PrivateSubButton10_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton10.Click

Dimy,y1AsString

y="我去资料室查资料"

y1=Mid(y,7,2)

'y1=Microsoft.VisualBasic.Right(y,2)

MsgBox(y1)

EndSub

在字符串中插入空格

PrivateSubButton11_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton11.Click

Dimy,y1AsString

y="Thisisabook"

y1=Mid(y,1,4)&Space

(1)&Mid(y,5,2)&Space

(1)&Mid(y,7,1)&Space

(1)&Mid(y,8)

MsgBox(y1)

EndSub

求字母ASCII码

PrivateSubButton12_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton12.Click

DimyAsInteger

y=Asc("Z")

MsgBox(y)

EndSub

计算日期间隔

PrivateSubButton13_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton13.Click

DimyAsDate

Dimy1,y2,y3AsInteger

y="2013-1-1"

y1=DateDiff(DateInterval.Month,y,Today())

y2=DateDiff(DateInterval.WeekOfYear,y,Today())

y3=DateDiff(DateInterval.Day,y,Today())

MsgBox(y1&"个月"&y2&"个星期"&y3&"天")

EndSub

字符串转化为数值

PrivateSubButton14_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton14.Click

DimyAsString

DimaAsInteger

Dimy1AsInteger

y="42897"

y1=Val(y)

a=MsgBox(y1,vbOKCancel)

IfvbOK=aThen

MsgBox(a)

EndIf

EndSub

改变数值的输出形式(小数位数)

PrivateSubButton15_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton15.Click

DimyAsSingle

y=3287.153

MsgBox(Format(y,"000.00"))

EndSub

输出数据(每行四个,数据间隔四格,数值型00000.00,字符型@@@@@@@@,日期型dddddd

PrivateSubButton16_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton16.Click

Dimz1,z2,z3,z4AsSingle

Dimz5,z6,z7AsString

Dimz8AsDate

z1=45.632

z2=8246.25

z3=123.8

z4=45627

z5="student"

z6="permanence"

z7="teachers"

z8=#4/5/2004#

MsgBox(Format(z1,"00000.00")&""&Format(z2,"00000.00")&""&Format(z3,"00000.00")&""&Format(z4,"00000.00")&vbCrLf&Format(z5,"{0,-8}")&""&Format(z6,"{0,-8}")&""&Format(z7,"{0,-8}")&""&Format(z8,"d"))‘换行

EndSub

EndClass

If语句,select语句进行有条件的计算,成绩排名,大小排序

PublicClassForm1

数学公式计算格式,含平方根

PrivateSubButton1_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton1.Click

DimaAsString,bAsString,cAsString

Dimx1AsSingle,x2AsSingle

a=InputBox("输入A","输入数据Y",,500,500)

b=InputBox("输入B","输入数据Y",,500,500)

c=InputBox("输入C","输入数据Y",,500,500)

x1=-b+Math.Sqrt(b^2-4*a*c)/2/a

x2=-b-Math.Sqrt(b^2-4*a*c)/2/a

MsgBox("x1="&Format(x1,"###.###")&"x2="&Format(x2,"###.###"))

EndSub

公式计算

PrivateSubButton2_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton2.Click

DimxAsInteger

DimyAsInteger

DimzAsSingle

x=5

y=9

z=(x^3+x*y+y^3)/(2*x*y)

MsgBox("(x^3+x*y+y^3)/(2*x*y)="&z)

EndSub

公式计算,含对数,绝对值

PrivateSubButton3_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton3.Click

DimxAsSingle

DimyAsSingle

x=InputBox("输入x")

y=Math.Log(20)+Math.Abs(x-16)

MsgBox("Math.Log(20)+Math.Abs(x-16)="&y)

EndSub

PrivateSubButton4_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton4.Click

DimxAsSingle

DimyAsSingle

x=InputBox("输入x")

y=0.231*x+1.36

MsgBox("0.231*x+1.36="&y)

EndSub

公式计算,角度转换

PrivateSubButton5_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton5.Click

ConstgAsSingle=9.81

DimvAsSingle,oAsSingle,tAsSingle,sAsSingle

v=InputBox("输入初速度")

o=InputBox("输入角度")

t=2*v*Math.Sin(o*Math.PI/180)/g

s=v*Math.Sin(2*o*Math.PI/180)/g

MsgBox("落地所需时间"&t&"落地时运动的射程"&s)

EndSub

EndClass

PublicClassForm1

If语句,随机函数产生奇,偶数,

PrivateSubButton1_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton1.Click

DimxAsInteger

x=Int(Rnd()*100)

IfxMod2=0Then

MsgBox(x&"是偶数")

Else

MsgBox(x&"是奇数")

EndIf

EndSub

If语句找出a,b,c中最大最小数

PrivateSubButton2_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton2.Click

DimaAsSingle,bAsSingle,cAsSingle,xAsSingle,yAsSingle

a=InputBox("请输入a")

b=InputBox("请输入b")

c=InputBox("请输入c")

Ifa>bThen

x=a

y=b

Else

x=b

y=a

EndIf

Ifc>aThen

x=c

Else

Ifc

y=c

EndIf

EndIf

MsgBox("最大数"&x&"最小数"&y)

EndSub

If语句进行有条件的计算

PrivateSubButton3_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton3.Click

DimtAsSingle,fAsSingle

t=InputBox("请输入t")

Ift<120Then

f=0.06*t+2

MsgBox("f=0.06*t+2="&f)

Else

f=0.06*t*0.85

MsgBox("f=0.06*t*0.85="&f)

EndIf

EndSub

If语句排成绩等级

PrivateSubButton4_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton4.Click

DimxAsSingle

DimyAsString

x=InputBox("请输入成绩")

Ifx>=90Then

y="A"

ElseIfx>=80Then

y="B"

ElseIfx>=70Then

y="C"

ElseIfx>=60Then

y="D"

Else

y="E"

EndIf

MsgBox("成绩"&x&"等级为"&y)

EndSub

Select语句进行有条件的计算

PrivateSubButton5_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton5.Click

DimxAsSingle,yAsSingle

x=InputBox("请输入x")

SelectCasex

CaseIs<=-1

y=x-1

CaseIs<=2

y=2*x

CaseIs<=10

y=x*(x+2)

CaseElse

y=0

EndSelect

MsgBox("y="&y)

EndSub

PrivateSubButton6_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton6.Click

DimaAsString,bAsString,cAsString

Dimx1AsSingle,x2AsSingle,xAsSingle

a=InputBox("输入A","输入数据Y",,500,500)

b=InputBox("输入B","输入数据Y",,500,500)

c=InputBox("输入C","输入数据Y",,500,500)

x=b^2-4*a*c

Ifx>=0Then

x1=-b+Math.Sqrt(x)/2/a

x2=-b-Math.Sqrt(x)/2/a

MsgBox("x1="&Format(x1,"###.###")&"x2="&Format(x2,"###.###"))

Else

x1=Math.Sqrt(-x)/2/a

x2=-Math.Sqrt(-x)/2/a

MsgBox("x1="&-b/2/a&x1&"ix2="&-b/2/a&x2&"i")

EndIf

EndSub

PrivateSubButton7_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton7.Click

DimxAsSingle,yAsSingle

x=InputBox("请输入x")

Ifx<=-1Then

y=x-1

ElseIfx<=2Then

y=2*x

ElseIfx<=10Then

y=x*(x+2)

EndIf

MsgBox("y="&y)

EndSub

EndClass

1.计算1/(1*2)+1/(2*3)+...+1/(n*n+1)

PublicClassForm1

Dima(19)AsInteger

PrivateSubBu

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