whilespeedlimit.html

来自「JavaScript实例」· HTML 代码 · 共 27 行

HTML
27
字号
<HTML><HEAD><TITLE>Speed Limit</TITLE>
</HEAD>
<script>
function speedLimit(speed){
  while(speed<=65){
     var newSpeed=prompt("Your speed is "+ speed +".Please enter a new speed","");
     if(newSpeed>65){
        alert("You are speeding!");
     break;
     }
     else if(newSpeed<=0){
        alert("Your are stopping!");
     break;
     }
     else
        speed=newSpeed;
  }
}
</script>
<BODY>
<h1>Select Reload or Refresh to restart the SpeedLimit program.</h1><p>
<script>
speedLimit(55);
</script>
</BODY>
</HTML>

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