【教学课件】第8章网络编程技术.ppt

第8章 网络编程技术,8.1 JavaScript,8.1.1 一个最简单的JavaScript脚本,JavaScript练习,alert(Warning！我是JavaScript初学者！);,8.1.2 改变背景颜色,var MyColor;MyColor=prompt(您最喜欢的颜色是:,);switch(MyColor)case 红色:document.bgColor=red;break;case 黄色:document.bgColor=yellow;,break;case 灰色:document.bgColor=gray;break;default:alert(我不认识这些颜色!);,8.1.3 显示日期和时间,today=new Date()document.write(现在时间是：,today.getHours(),:,today.getMinutes()document.write(今天日期为：,today.getMonth()+1,/,today.getDate(),/,today.getYear();,8.1.4 弹出新窗口。,window.open(time.htm,日期);,8.1.5 表单和函数,function WinOpen()window.open(time.htm,日期);,8.1.6 用JavaScript编制在线练习题目,英语形成性练习题单向选择题，每题20分，共100分1、You have to _ your younger brother since mother is not at home.take care take after look after 2、You have to _ the registration form in order to use that website.carry on fill in keep up 3、David,please _ these books _ to the libarary.take/back take/off take/out,4、If it rains,they will have to _ the picnic.go through put off set off 5、I like _ the radio.listening at listening for listening to,function cal(theForm)var score=0;if(theForm.R1.value=c)score+;if(theForm.R2.value=b)score+;if(theForm.R3.value=a)score+;if(theForm.R4.value=b)score+;if(theForm.R5.value=c)score+;alert(你的得分是:+score*20+分);,