Javascript教程第六课：Javascript的Switch语句

switch(n)  {  
case 1:    execute code block 1    break      
case 2:    execute code block 2    break  
default:      code to be executed if n is    different from case 1 and 2  }

<script type="text/javascript"> 
 //You will receive a different greeting based  
//on what day it is. Note that Sunday=0,  
//Monday=1, Tuesday=2, etc.

var d=new Date()  
theDay=d.getDay()  
switch (theDay)  {  
case 5:    document.write("Finally Friday")    break  
case 6:    document.write("Super Saturday")    break  
case 0:    document.write("Sleepy Sunday")    break  
default:    document.write("I'm looking forward to this weekend!")  }    
</script>