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JavaScriptÖеÄÈýÖÖµ¯³ö¿ò:¾¯¸æ(alert)¡¢È·ÈÏ(confirm)ÒÔ¼°ÌáÎÊ(prompt)
<script type="text/JavaScript">
 function testAlert(){
 alert("ÎÒ¾ÍÊÇ´«ËµÖеÄalert!!!");
 }
function testConfirm(){
     var r=confirm("ÄãÊDzËÄñÂð£¿");
  if(r==true){
    alert("±Ë´Ë±Ë´Ë");
  }
  else{
    alert("ÎÒÊÇÀÏÄñ");
  }
   }
function testPrompt(){
     var score;
  var degree;
  score=prompt("ÄãµÄ·ÖÊýÊÇ");
  if(score>100){
    degree="Ë£ÎÒ£¬100¾ÍÂú·ÖÀ²£¡";
  }else if(score<0){
    degree="Ë£ÎÒ£¬×îÉÙÒ²µÃ¸ø¸öÁãµ°°¡";
  }
  else{
 
   switch(parseInt(score/10)){
    case 0:
    case 1:
    case 2:
    case 3:
    case 4:
    case 5: degree="ûÓм°¸ñ"; break;
    case 6: degree="¸Õ¼°¸ñ";break;
    case 7:
    case 8:degree="²»´í£¬¼ÌÐøÅ¬Á¦";break;
    case 9:degree="ºÜºÃ£¬¿ìÂú·ÖÀ²";break;
    case 10:degree="Âú·ÖÀ²";break;
   }
  }
  alert(degree);
   }
 </script>
<form action="#" method="post">
 <p>
 <button value="alert" onclick="testAlert()">µ÷ÓÃalert</button>
 </p>
<p>
 <button onclick="testConfirm()" value="confirm">µ÷ÓÃconfirm</button>
</P>
<p>
 <button onclick="testPrompt()" value="prompt">µ÷ÓÃprompt</button>
</p>
 </form>


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