第一个javescript 程序 

<!DOCTYPE html>
<html>
<body>
<script language="javascript" type="text/javascript">
<!--
function greeter(person) {
    return "Hello, " + person;
}
var user = "Jane User";
document.body.innerHTML = greeter(user);
confirm("ready to play");
var age=prompt("what's your age");
 if(age>=13)
 {
     console.log("play");
 }
 else
 {
     console.log('sorry');
 }
 
 console.log("You are at a Justin Bieber concert, and you hear this lyric 'Lace my shoes off, start racing.'" );
 console.log("Suddenly, Bieber stops and says, 'Who wants to race me?'");
 
 var userAnswer=prompt("Do you want to race Bieber on stage?");
 
 
 if(userAnswer='yes')
 {
     console.log("You and Bieber start racing. It's neck and neck! You win by a shoelace!");
 }
else
{
     console.log("Oh no! Bieber shakes his head and sings 'I set a pace, so I can race without pacing.'");
 }
 
 var feedback= prompt("Message");
 if(feedback>8)
 {
     console.log("Thank you! We should race at the next concert!");
     
 }
 else
 {
     console.log("I'll keep practicing coding and racing.")
 }
//-->
</script>
</body>
</html>
View Code

 

posted @ 2014-09-11 16:41  Roychenfly  阅读(170)  评论(0)    收藏  举报