第一章javascript简介
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1.在地址栏输入javascript语句
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Javascript:Document.write("显示文字")
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2.将javascript嵌入 HTML文档
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<
script
language
=javascript
>
document.bgColor="blue"
</
script
>
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第二章 使用变量和数组
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1.声明变量
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<
script
language
=javascripe
>
Var answer1,answer2,answer3,answer4;
answer1=9;
answer2=2.5
answer3="Milkey May"
answer4=true
</
script
>
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2.使用整数
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<
script
language
=javascript
>
var decimalNum,hexadecimalNum,octalNum
decimalNum=24
hexadecimalNum=0x24
octalNum=024
document.write("显示十进制数:"+ decimalNum+"<br>")
document.write("显示十六进制数:"+ hexadecimalNum +"<br>")
document.write("显示八进制数:"+ octalNum +"<br>")
</
script
>
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3.使用浮点数
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<
script
language
=javascript
>
var num1,num2,num3,num4
num1=1234567890000.0
num2=5.14e23
num3=0.0000123456
num4=6.0254e3-4
document.write("浮点数1:"+num1+"<br>")
document.write("浮点数2:"+num2+"<br>")
document.write("浮点数3:"+num3+"<br>")
document.write("浮点数4:"+num4+"<br>")
</
script
>
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4.使用布尔值
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<
script
language
=javascript
>
var answer1,answer2
answer1=true
answer2=false
document.write("显示布尔1:"+answer1+"<br>")
document.write("显示布尔2:"+answer2+"<br>")
</
script
>
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5.使用字符串
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<
script
language
=javascript
>
var str1,str2
str1="fdsgdg dsfdsf china"
str2="武汉市广播电视大学"
document.write("显示字符串1:"+str1+"<br>")
document.write("显示字符串2:"+str2+"<br>")
</
script
>
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6.确定变量类型
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<
script
>
var answer1,answer2,answer3,answer4
answer1=9
answer2=2.5
answer3="milky may"
answer4=true
document.write("变量1的类型是:"+typeof answer1 +"<br>")
document.write("变量2的类型是:"+typeof answer2 +"<br>")
document.write("变量3的类型是:"+typeof answer3 +"<br>")
document.write("变量4的类型是:"+typeof answer4 +"<br>")
</
script
>
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7.将字符串转换成数字
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<
script
>
var str1="31 days in january"
var int1=parseInt(str1)
document.write("str1的数据类型是 :"+typeof str1+"<br>")
document.write("int1的数据类型是 :"+typeof int1+"<br>")
</
script
>
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8.将数字转换成字符串
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<
script
>
var int1=256
var str1=""+int1
document.write("str1的数据类型是 :"+typeof str1+"<br>")
document.write("int1的数据类型是 :"+typeof int1+"<br>")
</
script
>
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9.声明数组
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<
script
>
array=new Array(5)
array[0]=1
array[1]=3
array[2]=5
array[3]=7
array[4]=11
document.write("数组是:"+array[0]+" "+array[1]+" "+array[2]+" "+array[3]+" "+array[4])
</
script
>
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10.确定数组元素的个数
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<
script
>
array=new Array(5)
array[0]=1
array[1]=3
array[2]=5
array[3]=7
array[4]=11
document.write("数组是:"+array[0]+" "+array[1]+" "+array[2]+" "+array[3]+" "+array[4]+"<br>")
document.write("数组的元素个数是"+array.length)
</
script
>
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11.将数组转换为字符串
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<
script
>
array=new Array()
array[0]="dark"
array[1]="apple"
array[2]="nebula"
array[3]="water"
str1=array.join()
str2=array.join(" ")
document.write(str1+"<br>")
document.write(str2)
</
script
>
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12.对数组排序
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<
script
>
array=new Array()
array[0]="dark"
array[1]="apple"
array[2]="nebula"
array[3]="water"
str1=array.sort()
document.write(str1+"<br>")
</
script
>
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第三章 创建表达式
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1.使用算术运算符
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<
script
>
var1=12
var2=10
varadd=var1+var2
varsub=var1-var2
varmult=var1*var2
vardiv=var1/var2
varmod=var1%var2
document.write("数据1是:"+var1+"<br>")
document.write("数据2是:"+var2+"<br>")
document.write("数据相加是:"+varadd+"<br>")
document.write("数据相减是:"+varsub+"<br>")
document.write("数据相乘是:"+varmult+"<br>")
document.write("数据相除是:"+vardiv+"<br>")
document.write("数据相除取余数是:"+varmod+"<br>")
</
script
>
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2.递增变量和递减变量
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<
script
>
days=1
document.write("输出变量"+days+"<br>")
days++
document.write("递增后变量变为:"+days)
</
script
>
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3.创建比较表达式
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<
script
>
daysofmonth=28
if(daysofmonth==28)
month="february"
document.write("days of month:"+daysofmonth+"<br>")
document.write("month:"+month)
</
script
>
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4.创建逻辑表达式
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<
script
>
dayofmonth=28
if(dayofmonth==28 || dayofmonth==29)
month="february"
document.write("days of month:"+dayofmonth+"<br>")
document.write("month:"+month)
</
script
>
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5.使用条件运算符
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<
script
language
="javascript"
>
stomach="hungry";
time="5:00";
(stomach=="hungry"&&time=="5:00") ? eat = "dinner":eat="a snack";
document.write("输出结果"+eat);
</
script
>
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6.识别数字
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<
script
>
var1=24;
(isNaN(var1))?document.write("变量var1"+var1+"不是数字"):Document.write("变量var1"+var1+"是数字")
</
script
>
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第四章 控制程序流程
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1.使用IF –Else语句
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<
script
>
month="december"
date=25
if(month=="december" && date==25)
document.write("今天是圣诞节,商店关门")
else
document.write("欢迎,您来商店购物")
</
script
>
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2.使用for 循环
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<
script
>
for (count=1;count<=10;count++)
document.write("输出第"+count+"句"+"<br>")
</
script
>
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3.使用while循环
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<
script
>
count=1
while(count<=15){
document.write("输出第"+count+"句" +"<br>")
count++}
</
script
>
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4.中断循环
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<
script
>
count=1
while(count<=15){
count++
if(count==8)
break;
document.write("输出第"+count+"句"+"<br>")}
</
script
>
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5.继续循环
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<
script
>
count=1
while(count<=15){
count++
if(count==8)
continue;
document.write("输出第"+count+"句"+"<br>")}
</
script
>
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6.使用javascript定时器
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<
script
>
function rabbit()
{document.write("输出语句")
}
</
script
>
<
body
onload
=window.setTimeout(rabbit(),5000)
>
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7.设置定期间隔
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<
script
>
window.setInterval("document.form1.text2.value=document.form1.text1.value",3000)
</
script
>
<
form
name
=form1
>
<
input
type
=text
name
=text1
><
br
>
<
input
type
=text
name
=text2
><
br
>
</
form
>
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8.清除超时和间隔
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<
script
>
stop=window.setInterval("document.form1.text2.value=document.form1.text1.value",300)
</
script
>
<
form
name
=form1
>
<
input
type
=text
name
=text1
><
br
>
<
input
type
=text
name
=text2
><
br
>
<
input
type
=button
name
=button1
value
=" 清除超时和间隔"
onclick
=clearInterval(stop)
>
</
form
>
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第五章 使用函数
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1.声明函数
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<
script
>
function quote()
{ document.write("输出语句")
}
</
script
>
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2.调用函数
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<
script
>
function quote()
{ document.write("输出语句")
}
quote()
</
script
>
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3.了解全局变量和局部变量
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任何不用 var关键字声明的变量都是全局变量,任何在函数外声明的变量都是全局变量
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4.将参数传送给函数
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<
script
>
function f(item)
{document.write("输出参数"+item+"<br>")
}
f("fgdfgd")
f("参数二")
</
script
>
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5.从函数返回值
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<
script
>
function average(var1,var2,var3)
{ave=(var1+var2+var3)/3;
document.write("输出结果");
return ave;
}
document.write(average(34,56,78))
</
script
>
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6.通过HTML链接调用函数
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<
script
>
function quote(){
document.write(" 输出字符串")
}
</
script
>
<
a
href
=javascript:quote()
>
通过HTML链接调用函数
</
a
>
<
a
href
=javascript:Document.write("输出字符")
>
通过HTML链接调用函数,直接写javascript语句
</
a
>
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第六章 处理事件
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1.检查鼠标单击
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<
form
name
=form1
>
<
input
type
=button
name
=button1
value
=hello
onclick
=document.form1.button1.value='there'
>
</
form
>

2.检测双击

<
form
name
=form1
>
<
input
type
=button
name
=button1
value
=hello
onclick
=document.form1.button1.value='你单击了按钮'
ondblclick
=document.form1.button1.value='你双击了该按钮'
>
</
form
>

3.创建悬停按钮

<
img
src
=go.gif
onmouseover
=document.images[0].src='go2.gif'
onmouseout
= document.images[0].src='go.gif'
>

4.检测按键

<
form
name
=form1
>
<
input
type
=text
name
=text1
value
=hello
onkeypress
="if(window.event.keyCode=='100') document.form1.text1.value='你按了d键'"
>
</
form
>

5.设置焦点

<
form
name
=form1
>
<
input
type
=text
name
=text1
value
=hello
onfous
=document.form1.text1.value='该文本框获得焦点'
onblur
=document.form1.text1.value='该文本框失去焦点'
>
</
form
>

6.检测下拉菜单选择

<
form
name
=form1
>
<
select
name
=select1
size
=4
onChange
=document.form1.text1.value=document.form1.select1.value
>
<
option
value
="北京"
>
北京
</
option
>
<
option
value
="上海"
>
上海
</
option
>
<
option
value
="武汉"
>
武汉
</
option
>
<
option
value
="天津"
>
天津
</
option
>
<
option
value
="大连"
>
大连
</
option
>
</
select
>
<
input
tppe
=text
name
=text1
value
=hello
>
</
form
>

7.创建网页加载和卸载信息

<
body
onload
=document.form1.text1.value='页面加载完毕'
onunload
=alert('再见,欢迎再来')
>
<
form
name
=form1
>
<
input
type
=text
name
=text1
value
="页面正在加载 ……"
>
</
form
>

第七章 使用对象

1.理解对象\属性和方法

<
body
bgcolor
="green"
>
<
script
>
document.write("页面背景颜色是:"+document.bgColor)
document.write("页面前景颜色是:"+document.fgColor)
</
script
>

2.使用网页元素对象

<
script
>
</
script
>
<
form
name
=form1
>
<
textarea
name
=ta1
>
dfgfdgfdhfdhdfdfgdf
</
textarea
>
<
input
type
=button
value
="选择文本"
onclick
=document.form1.ta1.select()
>
<
input
type
=button
value
="显示文本"
onclick
=document.write(document.form1.ta1.value)
>
</
form
>

3.使用子对象


<
form
name
=form1
>
<
input
type
=text
name
=text1
value
=hello
>
</
form
>
<
script
>
document.form1.text1.value="gdfgfd"
</
script
>

<
form
name
=form1
>
<
input
type
=radio
name
=radio1
>
男
<
input
type
=radio
name
=radio2
>
女
</
script
>
<
script
>
document.form1.radio1.checked=true
</
script
>

4.使用预定义对象

<
script
>
str1="dgdfgdfgdfhf固定法固定法功夫攻打法"
document.write(str1+"<br>")
str2=str1.substr(5)
document.write(str2+"<br>")
document.write("输出圆的面积:"+Math.PI*Math.pow(5.0,2))
</
script
>

5.创建新对象

<
script
>
today=new Date()
document.write("今天是"+(today.getMonth()+1)+"月"+today.getDate()+"日"+"<br>")
document.write("现在是:"+today.toLocaleString())
</
script
>

6.引用当前对象

<
form
name
=form1
>
<
input
type
=text
name
=text1
value
="dgdgdfgfd"
onclick
=this.select()
>
</
script
>

7.查看对象属性

<
script
>
for(prop in window)
{document.write("window."+prop+"="+window[prop]+"<br>");}
for(prop2 in location)
{document.write("location."+prop2+"="+location[prop]+"<br>");}
</
script
>

8.使用Array对象

<
script
>
array=new Array(10)
array[0]="bark"
array[1]="apple"
array[2]="nebula"
array[3]="cookie"
array[4]="technology"
document.write("数组元素个数是"+array.Length+"<br>")
document.write("用 join将数组合并"+array.join(" ")+"<br>")
document.write(" 数组排序"+array.sort())
</
script
>

9.使用 image 对象

<
img
src
=**.gif
alt
="图片提示…."
border
=10
>
<
script
>
document.write("图片提示是:"+document.images[0].alt+"<br>")
document.write("图片边框大小是:"+document.images[0].broder)
</
script
>

10.预加载图像

<
script
>
freddy=new Image()
freddy.src=freddy.gif
</
script
>
<
body
onload
=document.images[0].src=freddy.src
>
,
<
img
src
="blank.gif"
>
</
body
>

11.改变图像

<
img
src
=freddy.gif
><
br
>
<
form
name
=form1
>
<
input
type
=button
name
=button1
value
="改变图像"
onclickd
=document.images[0].src=dudjp.gif
>
</
form
>

12.使用link和anchor对象

<
a
name
=anchor1
>
锚点1
<
br
>
<
a
href
=http://www.microsoft.com
>
Microsoft
</
a
><
br
>
<
a
href
=http://www.sohu.com
>
sohu
</
a
><
br
>
<
a
href
=http://www.sina.com.cn
>
sina
</
a
><
br
>
<
script
>
document.write("本页面共有"+document.links.length+"链接"+"<br>")
document.write("本页面共有"+document.anchors.length+"锚点"+"<br>")
document.write("第一个链接协议是"+document.links[0].protocol+"<br>")
document.write("第一个链接路径是"+document.links[0].pathnamel+"<br>")
document.write("第一个链接href是"+document.links[0].hrefl+"<br>")
</
script
>

13.改变链接

<
a
href
=http://www.microsoft.com
>
link
</
a
>
<
form
name
=form1
>
<
input
type
=button
name
=button1
value
="改变链接"
onclick
=document.links[0].href='http://www.sohu.com'
>
</
form
>

14.使用history对象

<
form
name
=form1
>
<
input
type
=button
name
=button1
value
="向后返回2页"
onclick
=window.history.go(-2)
>
</
form
>

第八章 使用窗口

1.在浏览器的状态栏上显示文本

<
body
onload
=window.status="欢迎光临我的站点"
>
<
a
href
=http://www.sohu.com
>
sohu
</
a
>
</
body
>

2.改变背景色

<
script
>
document.bgColor="orange"
</
script
>

3.列举背景颜色

<
body
bgColor
=green
>
<
script
>
document.write("当前背景色是:"+document.bgColor)
</
script
>
</
body
>

4.改变文本和链接颜色

<
script
>
document.bgColor="orange"
document.fgColor="blue"
document.linkColor="red"
</
script
>
<
h2
>
看看这段文本颜色
</
h2
>
<
a
href
=http://www.sohu.com
>
sohu
</
a
>
</
body
>

5.改变文档标题

<
script
>
name="Mouse"
document.title="welcome to "+name+"'s House"
document.write(document.title)
</
script
>

6.显示修改日期

<
script
>
document.write("本页面最后修改时间是"+document.lastModified)
</
script
>

7.查看当前文档的URL

<
script
>
document.write("本页面的URL:"+document.URL)
</
script
>

8.查看引用页

<
script
>
document.write("本页面的引用页是"+document.referrer)
</
script
>

9.打开新的浏览器窗口

<
script
>
window.open("*.htm","title","width=200,height=400,resizable=yes")
</
script
>

10.关闭远程窗口


close.html:
<
script
>
document.write("正文")
</
script
>
<
form
name
=form1
>
<
input
type
=button
name
=button1value="关闭"
onclick
=window.close()
>
</
form
>

open.html
<
script
>
window.open("close.html","romote","width=200,height=400,resizable=yes")
</
script
>

11.打印窗口

<
script
>
document.write("正文")
</
script
>
<
form
name
=form1
>
<
input
type
=button
value
=打印
onclick
=window.print()
>
</
form
>

12.移动窗口


<
form
name
=form1
>
水平方向
<
input
type
=text
name
=x
value
=20
>
垂直方向
<
input
type
=text
name
=y
value
=50
>
<
input
type
=button
value
="移动窗口到…"
onclick
=window.moveTo(document.form1.x.value,document.form1.y.value)
>
</
form
>

<
form
name
=form1
>
水平方向
<
input
type
=text
name
=x
value
=20
>
垂直方向
<
input
type
=text
name
=y
value
=50
>
<
input
type
=button
value
="移动窗口"
onclick
=window.moveBy(document.form1.x.value,document.form1.y.value)
>
</
form
>


13.改变窗口大小


<
form
name
=form1
>
水平方向
<
input
type
=text
name
=x
value
=200
>
垂直方向
<
input
type
=text
name
=y
value
=500
>
<
input
type
=button
value
="改变窗口大小到….."
onclick
=window.resizeTo(document.form1.x.value,document.form1.y.value)
>
</
form
>

<
form
name
=form1
>
水平方向
<
input
type
=text
name
=x
value
=200
>
垂直方向
<
input
type
=text
name
=y
value
=500
>
<
input
type
=button
value
="改变窗口大小"
onclick
=window.resizeBy(document.form1.x.value,document.form1.y.value)
>
</
form
>

14.用警告对话框通知用户

<
script
>
window.alert("welcome")
</
script
>

15.用提示对话框接受输入

<
script
>
name=window.prompt("输入姓名","姓名")
document.write(" 欢迎您:"+name+"来到这里")
</
script
>

16.用确认对话框使用户做出决定

<
script
>
like=window.confirm("你觉得好吗?")
if(like==true)
document.write("谢谢你的夸奖")
else
document.write("希望得到你的夸奖")
</
script
>

第九章 使用字符串

1.使用字符串对象

<
script
>
mystring="gdgdfgfddddaaaaaaaaaaaabbbbbbbbbbbbbbbbbvbhg.<br>"
document.write(mystring)
document.write(mystring.bold())
document.write(mystring.toUpperCase())
</
script
>

2.使用子字符串

<
script
>
str1="fdsf 1111 gfdgfd dfdsf cccc dddd.<br>"
document.write(str1)
document.write(str1.substring(0,13)+"<br>")
document.write(str1.substr (20,11)+"<br>")
</
script
>

3.连接字符串

<
script
>
str1="may you find"
str2="peace,happiness and prosperity.<br>"
document.write(str1+"<br>")
document.write(str2)
document.write(str1.concat(str2))
document.write(str1+=str2)
</
script
>

4.格式化字符串变量

<
script
>
str1="peace,happiness and prosperity.<br>"
document.write(str1)
document.write(str1.big())
document.write(str1.small())
document.write(str1.bold())
document.write(str1.italics())
document.write(str1.strike())
document.write(str1.fontsize(6))
document.write(str1.fontcolor(green))
</
script
>

5.创建锚和链接

<
script
>
str1="this is the bigginning of the page.<br>"
str2="….<br>"
str3="this is the end of the page .<br>"
str4="link to the start<br>"
str5="link to the end<br>"
document.write(str1.anchor("start"))
for(i=0;i<10;i++)
document.write(str2);
document.write(str3.anchor("end"))
document.write(str4.link("#start"))
document.write(str5.link("#end"))
</
script
>

6.确定字符串长度

<
script
>
str1="this is the bigginning of the page."
document.write(str1+"<br>")
document.write( "字符串的长度是:"+str1.length)
document.write("字符串全部大写是;"+str1.toUpperCase())
document.write("字符串全部小写是;"+str1.toLowerCase())
</
script
>

7.在字符串内搜索

<
script
>
str1="this is the end of the line.<br>"
document.write(str1)
document.write("字符end在字符串的位置是"+str1.search("end"))
document.write("字符dog在字符串的位置是"+str1.search("dog"))
</
script
>

8.定位字符串中的字符

<
script
>
str1="spring is a time for flowers and trees and baby bunnles<br>"
document.write(str1)
document.write("the index for the second word ‘and' is"+str1.indexOf("and",30))
documednt.write("the last index of the word ‘and' is "+str1.lastIndexOf("and"))
</
script
>

9.替换字符串中的文本

<
script
>
str1="spring is a time for flowers and trees and baby bunnles<br>"
document.write(str1)
document .write(str1.replace("and",","))
</
script
>

10.字符串分离

<
script
>
str1="spring is a time for flowers and trees and baby bunnles<br>"
document.write(str1)
str1array=str1.split(" ")
document.write(str1array[0]+"<br>")
document.write(str1array[1]+"<br>")
document.write(str1array[2]+"<br>")
document.write(str1array[3]+"<br>")
</
script
>

第十章 使用日期和时间
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1.使用Date对象

<
script
>
cdate=new Date("august 2,1989 12:30:00")
document.write(cdate)
</
script
>

2.显示当地时间和日期

<
script
>
cdate=new Date()
document.write("当前时间是:"+cdate.toGMTString()+"<br>")
document.write("日期和时间是:"+cdate.toLocaleString())
</
script
>

3.获得时间和日期值

<
script
>
cdate=new Date()
document.write("显示当前的星期"+cdate.getDay()+"<br>")
document.write("显示当前的月份"+cdate.getMonth()+"<br>")
document.write("显示当前的日期"+cdate.getDay()+"<br>")
document.write("显示当前的年份"+cdate.getYear()+"<br>")
document.write("显示当前的小时"+cdate.getHours()+"<br>")
document.write("显示当前的分钟"+cdate.getMinutes()+"<br>")
document.write("显示当前的秒"+cdate.getSeconds()+"<br>")
</
script
>

4.设置时间和日期值

<
script
language
=javascript
>
cdate=new Date("December 25,1984")
document.write("显示日期"+cdate+"<br>")
document.write("设置月份"+cdate.setMonth(10)+"<br>")
document.write("设置日期"+cdate.setDate(23)+"<br>")
document.write("设置年份"+cdate.setYear(2000)+"<br>")
document.write("设置小时"+cdate.setHours(13)+"<br>");
document.write("设置分钟"+cdate.setMinutes(47)+"<br>");
document.write("设置秒"+cdate.setSeconds(23)+"<br>");
document.write("显示设置后的日期和时间"+cdate);
</
script
>

第十一章 使用Math对象
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1. 使用Math对象

<
script
language
=javascript
>
</
script
>
<
form
name
=form1
>
圆的半径:
<
input
type
=text
name
=rad
><
br
>
圆的面积:
<
input
type
=text
name
=area
><
br
>
<
input
type
=button
name
=button1
value
=计算圆的面积
onclick
=document.form1.area.value=document.form1.rad.value*document.
form1.rad.value*Math.PI
>
</
form
>

2.生成随机数

<
script
>
array1=new Array(
"这是第1句",
"这是第2句",
"这是第3句",
"这是第4句",
"这是第5句",
"这是第6句")
RandomNo=Math.floor(array1.length*Math.random())
document.write("随机输出某一句"+"<br>"+array1[RandomNo])
</
script
>

3.使用平方根

<
form
name
=form1
>
value:
<
input
type
=text
name
=va1
><
br
>
平方根
<
input
type
=text
name
=sqrt
><
br
>
<
input
type
=button
name
=button1
value
=计算平方根
onclick
="document.form1.sqrt.value=Math.sqrt(document.form1.va1.value)"
>
</
form
>

4.数字的舍入

<
form
name
=form1
>
输入
<
input
type
=text
name
=val
><
br
>
舍入的结果
<
input
type
=text
name
=round
><
br
>
<
input
type
=button
name
=button1
value
=计算结果
onclick
=document.form1.round.value=Math.round(document.form1.val.value)
>
</
form
>

5.乘方运算

<
form
name
=form1
>
底数
<
input
type
=text
name
=val
><
br
>
指数
<
input
type
=text
name
=power
><
br
>
幂
<
input
type
=text
name
=result
><
br
>
<
input
type
=button
name
=button1
value
=计算结果
onclick
="document.form1.result.value=Math.pow (document.form1.val.value,document.form1.power.value)"
>
</
form
>

6.发现最小值和最大值

<
form
name
=form1
>
数字1
<
input
type
=text
name
=val1
><
br
>
数字2
<
input
type
=text
name
=val2
><
br
>
最小值
<
input
type
=text
name
=min
><
br
>
最大值
<
input
type
=text
name
=max
><
br
>
数字1
<
input
type
=button
value
=计算
onclick
="document.form1.min.value=Math.min (document.form1.val1.value,document.form1.val2.value);document.form1.
max.value= Math.max(document.form1.val1.value,document.form1.val2.value)"
>
</
form
>

第十二章 使用表单

1.使用文本框


<
form
name
=form1
>
<
input
type
=text
value
="information ,please"
name
=text1
>
</
form
>
<
script
>
document.write("表单text1类型是: "+document.form1.text1.type+"<br>")
document.write("表单text1名称是: "+document.form1.text1.name+"<br>")
document.write("表单text1值是: "+document.form1.text1.value+"<br>")
document.write("表单text1大小是: "+document.form1.text1.size+"<br>")
</
script
>

<
form
name
=form1
>
<
input
type
=text
name
=text1
value
=click
here
onfocus
=document.form1.text1.select()
>
</
form
>

2.使用密码框

<
form
name
=form1
>
<
input
type
=password
name
=pw1
value
=daylight
>
</
form
>
<
script
>
document.write("表单pw1的类型:"+document.form1.pw1.type+"<br>")
document.write("表单pw1的名称:"+document.form1.pw1.name+"<br>")
document.write("表单pw1的值:"+document.form1.pw1.value+"<br>")
document.write("表单pw1的大小:"+document.form1.pw1.size+"<br>")
</
script
>

3.使用隐藏字段

<
form
name
=form1
>
<
input
type
=hidden
name
=hid1
value
=piece
of eight
>
</
form
>
<
script
>
document.write("表单hid1的类型:"+document.form1.hid1.type+"<br>")
document.write("表单hid1的名称:"+document.form1.hid1.name+"<br>")
document.write("表单hid1的值:"+document.form1.hid1.value+"<br>")
</
script
>
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4.使用文本区域框
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<
form
name
=form1
>
<
textarea
name
=ta1
>
how many grains of sand are there in the sahara desert?
</
textarea
>
</
form
>
<
script
>
document.write("表单ta1的类型:"+document.form1.ta1.type+"<br>")
document.write("表单ta1的名称:"+document.form1.ta1.name+"<br>")
document.write("表单ta1的值:"+document.form1.ta1.value+"<br>")
document.write("表单ta1的横向宽度:"+document.form1.ta1.cols+"<br>")
document.write("表单ta1的纵向宽度:"+document.form1.rows.value+"<br>")
</
script
>
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6.使用重置按钮
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<
form
name
=form1
>
<
input
type
=reset
name
=reset1
value
="rest form"
>
</
form
>
<
script
>
document.write("表单reset1的类型:"+document.form1.reset1.type+"<br>")
document.write("表单reset1的名称:"+document.form1.reset1.name+"<br>")
document.write("表单reset1的值:"+document.form1.reset1.value+"<br>")
</
script
>
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7.使用提交按钮
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<
form
name
=form1
>
<
input
type
=submit
name
=submit1
value
="submit form"
>
</
form
>
<
script
>
document.write("表单submit1的类型:"+document.form1.submit1.type+"<br>")
document.write("表单submit1的名称:"+document.form1.submit1.name+"<br>")
document.write("表单submit1的值:"+document.form1.submit1.value+"<br>")
</
script
>
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8.使用复选按钮
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<
form
name
=form1
>
<
input
type
=checkbox
name
=cb1
>
computer savvy?
</
form
>
<
script
>
document.write("表单cb1的类型:"+document.form1.cb1.type+"<br>")
document.write("表单cb1是否被选择?:"+document.form1.cb1.checked+"<br>")
document.write("表单cb1的名称:"+document.form1.cb1.name+"<br>")
</
script
>
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9.使用单选按钮
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<
form
name
=form1
>
<
input
type
=radio
name
=radio1
>
male
<
input
type
=radio
name
=radio1
>
female
</
form
>
<
script
>
document.write("第一个按钮被选择"+document.form1.radio1[0].checked+"<br>")
document.write("第二个按钮被选择"+document.form1.radio1[1].checked+"<br>")
document.write("按钮的名称"+ document.form1.radio1[0].name+"<br>")
document.write("按钮的个数"+document.form1.radio1.length)
</
script
>
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10.使用选择列表
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<
form
name
=form1
>
<
select
name
=select1
size
=4
>
<
option
name
=option1
value
=lon
>
london,England
</
option
>
<
option
name
=option2
value
=dub
>
Dublin,Ireland
</
option
>
</
select
>
</
form
>
<
script
>
document.write("这个选择列表的名称"+document.form1.select1.name+"<br>")
document.write("这个选择列表的长度"+document.form1.select1.length+"<br>")
document.write("这个选择列表当前被选择的索引号"+document.form1.select1.selectedIndex+"<br>")
document.write("这个选择列表的尺寸"+document.form1.select1.size+"<br>")
</
script
>
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11.验证表单的有效性
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<
script
>
function validate(){
if(document.form1.text1.value!='1'||'2'||'3'||'4'){
alert("请输入1~4的整数")
}
}
</
script
>
<
form
name
=form1
>
请输入1~4的整数:
<
input
type
=text
name
=text1
size
=4
onchange
=validate()
>
</
form
>
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12.控制表单焦点
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<
form
name
=form1
>
<
input
type
=text
name
=text1
value
=where
is you focus?
><
br
>
<
input
type
=text
name
=text2
value
=is
there?
><
br
>
<
input
type
=text
name
=text3
value
=or
maybe here?
><
br
>
<
input
type
=button
name
=button1
value
="text box #1"
onclick
=document.form1.text1.focus()
><
br
>
<
input
type
=button
name
=button2
value
="text box #2"
onclick
=document.form1.text2.focus()
><
br
>
<
input
type
=button
name
=button3
value
="text box #3"
onclick
=document.form1.text3.focus()
><
br
>
</
form
>
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第十三章 使用分栏
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第十四章 使用navigator
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1.使用navigator对象
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<
script
>
document.write("navigator对象的属性"+"<br>")
document.write("appcodename:"+navigator.appCodeName+"<br>")
document.write("appname::"+navigator.appName+"<br>")
document.write("appversion:"+navigator.appVersion+"<br>")
document.write("platform:"+navigator.platform+"<br>")
document.write("userAgent:"+navigator.userAgent+"<br>")
</
script
>
<
script
>
document.write("navigator对象的方法"+"<br>")
document.write("javaEnabled():"+navigator.javaEnabled())
</
script
>
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2.检查用户的浏览器
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<
script
>
if(navigator.appName.indexOf("Microsoft")!=-1){
document.write("用户浏览器是微软的IE浏览器"+"<br>")}
else if(navigator.appName.indexOf("Netscape")!=-1){
document.write("用户浏览器是netscape的netscape浏览器"+"<br>")}
if(navigator.appVersion.indexOf("4.0")!=-1){
document.write("you are using a version 4.0compatible browser")
}
else{
document.write("this browser is not 4.0 compliant")}
</
script
>
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3.检测用户的操作系统
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<
script
>
if (navigator.platform.indexOf("win32")!=-1){
document.write("you are using a computer running windows 95 or highter")}
else{
document.write("this computer is not running windows 95 or higher")}
</
script
>

4.使用location对象
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
<
script
>
document.write("location对象的属性"+"<br>")
document.write("hash"+location.hash+"<br>")
document.write("hostname"+location.hostname+"<br>")
document.write("host"+location.host+"<br>")
document.write("href"+location.href+"<br>")
document.write("port"+location.port+"<br>")
document.write("search"+location.search+"<br>")
</
script
>

重新加载网页
<
form
name
=form1
>
<
input
type
=button
name
=button1
value
=重新加载本页
onclick
=location.reload
>
</
form
>


5.使用cookie
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
<
script
>
finction makecookie(){
if(!document.cookie){
name=prompt("请输入你的姓名");
document.cookie="name="+name+";";}
}
</
script
>

<
body
onload
=makecookie()
>
<
script
>
function makecookie(){
if(!document.cookie){
name=prompt("请输入你的姓名")
document.cookie="name="+name+";";
namestart=document.cookie.indexOf("=");
nameend=document.cookieindexOf(";");
document.writeln("your name is:"+document.cookie.substring(namestart+1,nameend)+",br>")
}
}
</
script
>
本文转自高海东博客园博客,原文链接:http://www.cnblogs.com/ghd258/archive/2006/08/19/481320.html,如需转载请自行联系原作者