测试一：
<HTML> <HEAD> <TITLE> New Document </TITLE> <Script type="text/javascript"> </Script> </HEAD> <BODY> </BODY> </HTML>
测试二：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript" src="2.js">
</SCRIPT>
</HEAD>
<BODY>
从外部引入javascript
</BODY>
</HTML>
2.js
代码：
测试三：
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
</HEAD>
<BODY>
<SCRIPT LANGUAGE="JavaScript">
document.write("<br>这是以javascript打印出来的！<br>");
</SCRIPT>
</BODY>
</HTML>
测试四：
<HTML> <HEAD> <TITLE> New Document </TITLE> <SCRIPT LANGUAGE="JavaScript"> var greeting; greeting="hello,i am Hongten!"; </SCRIPT> </HEAD> <BODY> <SCRIPT LANGUAGE="JavaScript"> document.write(greeting); </SCRIPT> </BODY> </HTML>
测试五：变量
<HTML> <HEAD> <TITLE> New Document </TITLE> <SCRIPT LANGUAGE="JavaScript"> var greeting; greeting="Hello world<br>"; test="I am Hongten"; </SCRIPT> </HEAD> <BODY> <SCRIPT LANGUAGE="JavaScript"> document.write(greeting); document.write(test); </SCRIPT> </BODY> </HTML>
测试六：数组
<HTML> <HEAD> <TITLE> New Document </TITLE> <SCRIPT LANGUAGE="JavaScript"> var arr=new Array(3); arr[0]=1; arr[1]=2; arr[2]=3; arr[3]=4; </SCRIPT> </HEAD> <BODY> <SCRIPT LANGUAGE="JavaScript"> document.write(arr[3]); </SCRIPT> </BODY> </HTML>
测试七：算术运算
<HTML> <HEAD> <TITLE> New Document </TITLE> <SCRIPT LANGUAGE="JavaScript"> var result; result=3*3; </SCRIPT> </HEAD> <BODY> <SCRIPT LANGUAGE="JavaScript"> document.write(result); </SCRIPT> </BODY> </HTML>
测试八：逻辑运算
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
var result1,result2,result3;
result1=true&&false;
result2=true||false;
result3=!true;
</SCRIPT>
</HEAD>
<BODY>
<SCRIPT LANGUAGE="JavaScript">
document.write("result1:"+result1+"<br>");
document.write("result2:"+result2+"<br>");
document.write("result3:"+result3+"<br>");
</SCRIPT>
</BODY>
</HTML>
测试九：字符串连接
<HTML> <HEAD> <TITLE> New Document </TITLE> <SCRIPT LANGUAGE="JavaScript"> var greeting,name; greeting="hello,"; name="i am Hongten"; </SCRIPT> </HEAD> <BODY> <SCRIPT LANGUAGE="JavaScript"> document.write(greeting+name); </SCRIPT> </BODY> </HTML>
测试十：字符串子集
<HTML> <HEAD> <TITLE> New Document </TITLE> <SCRIPT LANGUAGE="JavaScript"> var greeting; greeting="hello, i am Hongten"; </SCRIPT> </HEAD> <BODY> <SCRIPT LANGUAGE="JavaScript"> document.write(greeting.substring(3,13)); </SCRIPT> </BODY> </HTML>
测试十一：条件操作
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
var result1;
result1=3>4?"yes":"no";
</SCRIPT>
</HEAD>
<BODY>
<SCRIPT LANGUAGE="JavaScript">
document.write("result:"+result1);
</SCRIPT>
</BODY>
</HTML>
测试十二：条件操作二
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
var today=new Date();
var hour=today.getHours();
if(hour<12){
document.write("good morning!");
}else if(hour==12){
document.write("good noon!");
}else{
document.write("good night!");
}
</SCRIPT>
</HEAD>
<BODY>
</BODY>
</HTML>