问答详情
源自：2-2 JavaScript-警告（alert 消息对话框）

如何让alert对话框的字体有颜色？

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>alert</title>

  <script type="text/javascript">

  function rec(){

    var mychar="I love You.My darling!Forever!";

    alert(mychar);

  }

  </script>

</head>

<body>

    <input name="button" type="button" onClick="rec()" value="点我啊，亲爱的！" />

</body>

</html>


提问者：qq_塞纳新郎_03873271 2016-08-25 21:29

个回答

  • ZzzzZzz3501392
    2016-08-25 21:57:02
    已采纳

    window.alert = function(str) 
    { 
    var shield = document.createElement("DIV"); 
    shield.id = "shield"; 
    shield.style.position = "absolute"; 
    shield.style.left = "0px"; 
    shield.style.top = "0px"; 
    shield.style.width = "100%"; 
    shield.style.height = document.body.scrollHeight+"px"; 
    //弹出对话框时的背景颜色 
    shield.style.background = "#fff"; 
    shield.style.textAlign = "center"; 
    shield.style.zIndex = "25"; 
    //背景透明 IE有效 
    //shield.style.filter = "alpha(opacity=0)"; 
    var alertFram = document.createElement("DIV"); 
    alertFram.id="alertFram"; 
    alertFram.style.position = "absolute"; 
    alertFram.style.left = "50%"; 
    alertFram.style.top = "50%"; 
    alertFram.style.marginLeft = "-225px"; 
    alertFram.style.marginTop = "-75px"; 
    alertFram.style.width = "450px"; 
    alertFram.style.height = "150px"; 
    alertFram.style.background = "#ff0000"; 
    alertFram.style.textAlign = "center"; 
    alertFram.style.lineHeight = "150px"; 
    alertFram.style.zIndex = "300"; 
    strHtml = "<ul style=\"list-style:none;margin:0px;padding:0px;width:100%\">\n"; 
    strHtml += " <li style=\"background:#DD828D;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:25px;line-height:25px;border:1px solid #F9CADE;\">[自定义提示]</li>\n"; 
    strHtml += " <li style=\"background:#fff;text-align:center;font-size:12px;height:120px;line-height:120px;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;\">"+str+"</li>\n"; 
    strHtml += " <li style=\"background:#FDEEF4;text-align:center;font-weight:bold;height:25px;line-height:25px; border:1px solid #F9CADE;\"><input type=\"button\" value=\"确 定\" onclick=\"doOk()\" /></li>\n"; 
    strHtml += "</ul>\n"; 
    alertFram.innerHTML = strHtml; 
    document.body.appendChild(alertFram); 
    document.body.appendChild(shield); 
    var ad = setInterval("doAlpha()",5); 
    this.doOk = function(){ 
    alertFram.style.display = "none"; 
    shield.style.display = "none"; 
    } 
    alertFram.focus(); 
    document.body.onselectstart = function(){return false;}; 
    } 



    0
  • 繁繁l
    2017-10-18 16:36:51

    系统给的方法,没办法直接改

    0
  • qq_MiSamisa3864425
    2016-08-25 21:51:16

    黑色不是颜色吗

    1
  • 慕粉3875318
    2016-08-25 21:50:19

    好像改不了弹框里字体的颜色

    0