<!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>
原文：http://www.cnblogs.com/roychenfly/p/3966798.html
