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alert源码

发布时间: 2023-08-05 01:04:51

㈠ 怎么在html登陆界面源码添加判断用户名密码。就一个用户。无数据库

用正则啊,没有数据库的意思,自己前端写的死数据吧。
正则随时判断,数组(自己写的数组)中与输入框内容是否一致。
如果一致,点击登录,登录成功。
这是用的热加载。可以不用提交到后端就可以判断。
也可以点击按钮后,判断输入框内容是否和你自己想要的数据一致
if(username==“admin”&&password=="123"){
alert("登录成功")}else{
alert("密码或者账号不正确")}

㈡ 编写一个asp留言板源代码

<link href="../../css/user.css" rel="stylesheet" type="text/css">
<script language="javaScript" src="../../js/common.js"></script>
<script language="JavaScript" src="../../js/ubbcode.js"></script>

<script language="JavaScript">
function formCheck()
{

if (document.theform.nickname.value == "")
{
alert("请填写名字。");
document.theform.nickname.focus();
return false;
}

if (document.theform.content.value == "")
{
alert("请填写留言内容。");
document.theform.content.focus();
return false;
}
theform.Submit.disabled=true;
return true;
}

function showimage()
{
document.images.faceimg.src=face_image[parseInt(document.theform.face.options[document.theform.face.selectedIndex].value)];
}
<body background="http://cache26.51.com/photo1/14/cf/amulostlove/1151766298434_1.jpg">
<center>
<IFRAME marginHeight=0 marginWidth=0 noResize scrolling=no frameBorder=0 src="http://ads.activepower.net/script/ad/ad_show.asp?group_id=8&bgcolor=ffffff" width=468 height=60>
</IFRAME>
</center>
<p> </p>
<form name="theform" onsubmit="return formCheck();" method="post" action="get_post.asp">
<TABLE width=550 border=0 align="center" cellPadding=0 cellSpacing=0>
<table width="550" border="0" align="center" cellpadding="4" cellspacing="1" bgcolor="#ebebeb">
<tr>
<td class="pt9">
<p>*名字:
<input name="nickname" type="text" size="15" maxlength="12" class="inputbox1">
<br>
Email:
<input name="email" type="text" size="15" maxlength="45" class="inputbox1">
主页地址:
<input name="hp_url" type="text" value="http://" size="22" maxlength="125" class="inputbox1">
</p>
</td>
<tr>
<td width="409" class="pt9"> <!--因为图片连接的原因,本文件只适合include在script/dirname下的文件 -->
<img onClick=bold() src="../../images/icon_editor_bold.gif" width="23" height="22" alt="粗体" border="0"><img onClick=italicize() src="../../images/icon_editor_italicize.gif" width="23" height="22" alt="斜体" border="0"><img onClick=underline() src="../../images/icon_editor_underline.gif" width="23" height="22" alt="下划线" border="0">

<img onClick=center() src="../../images/icon_editor_center.gif" width="23" height="22" alt="居中" border="0"><img onClick=hyperlink() src="../../images/icon_editor_url.gif" width="23" height="22" alt="超级连接" border="0"><img onClick=email() src="../../images/icon_editor_email.gif" width="23" height="22" alt="Email连接" border="0"><img onClick=image() src="../../images/icon_editor_image.gif" width="23" height="22" alt="图片" border="0"><img onClick=flash() src="../../images/icon_swf.gif" width="23" height="22" alt="Flash图片" border="0"><img onClick=showcode() src="../../images/icon_editor_code.gif" width="23" height="22" alt="编号" border="0"><img onClick=quote() src="../../images/icon_editor_quote.gif" width="23" height="22" alt="引用" border="0"><img onClick=list() src="../../images/icon_editor_list.gif" width="23" height="22" alt="目录" border="0">

<br>
<tr>
<td>
<table width="100%" border="0" cellpadding="0" cellspacing="0" class="pt9">
<tr>
<td width="40" valign="top">*留言:</td>
<td><textarea name="content" cols="50" rows="6" id="content"></textarea></td>
</tr>
</table>
<p align="center">
<input name="replyer" type="hidden" value="">
<input name="reply_content_id" type="hidden" value="">
<input name="userid" type="hidden" value="79444">
<input type="submit" name="Submit" value="确认留言" class="button1">
<input type="reset" name="Reset" value="取消重写" class="button1">
</p></td>
</tr>
</table>
<p> </p>
</form>
<table width="550" border="0" align="center" cellpadding="2" cellspacing="1">
<tr>
<td width="88" valign="top">
<img src="http://img.mms.sohu.com/mms/1230/86/32486/p2.gif">

</td>
<td width="417"><TABLE width="100%" border=0 cellPadding=0 cellSpacing=0 class="pt9">
<TBODY>
<TR>
<TD width=43 colSpan=2 height=29 rowSpan=2><IMG height=29
src="../../images/1_r2_c2.gif" width=43 border=0></TD>
<TD background=../../images/1_r2_c4.gif height=10></TD>
<TD width=37 colSpan=2 height=29 rowSpan=2><IMG height=29
src="../../images/1_r2_c6.gif" width=37 border=0></TD>
</TR>
<TR>
<TD height=19> <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
<TBODY>
<TR>
<TD class="pt9"> <font class="filtertxt">dsfsd</font> </TD>
<TD width="168" align=right class="pt9"> </TD>
</TR>
</TBODY>
</TABLE></TD>
</TR>
<TR>
<TD width=10 background=../../images/1_r4_c2.gif></TD>
<TD width=27></TD>
<TD width="100%" height=50> <img src="../../images/blank.gif" width="5" height="5">
<br> fdsfsd<b>dfssdfsdf</b> <br> <img src="../../images/blank.gif" width="5" height="5"> </TD>
<TD width=22></TD>
<TD width=15 background=../../images/1_r4_c2.gif></TD>
</TR>
<TR>
<TD background=../../images/1_r4_c2.gif></TD>
<TD></TD>
<TD height=1><hr width="100%" size="1" noshade></TD>
<TD></TD>
<TD background=../../images/1_r4_c2.gif></TD>
</TR>
<TR>
<TD width=43 colSpan=2 height=26 rowSpan=2> <IMG height=26 src="../../images/1_r6_c2.gif" width=43 border=0></TD>
<TD align=right height=17>
<img src="../../images/no_home.gif" align="absmiddle"> <img src="../../images/no_email.gif" align="absmiddle"> <FONT color=#336600>[2006-7-17 21:24:00]</FONT> </TD>
<TD width=43 colSpan=2 height=26 rowSpan=2><IMG height=26
src="../../images/1_r6_c6.gif" width=37 border=0></TD>
</TR>
<TR>
<TD background=../../images/1_r2_c4.gif
height=9></TD>
</TR>
</TBODY>
</TABLE></td>
</tr>
</table>
<BR>
<form>
<table width="516" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td>
<table width=100% border=0 cellspacing=1 cellpadding=2 class=pt9><tr><td height=13><img src=../../images/turnpage2_1.gif align=absmiddle border=0> <img src=../../images/turnpage2_2.gif align=absmiddle border=0> <b>1</b> | <img src=../../images/turnpage2_3.gif align=absmiddle border=0> <img src=../../images/turnpage2_4.gif align=absmiddle border=0></td><td class=pt9 width=140 align=right>共<font color=red>1</font>页第<input type=text name=JumpPage maxlength=3 size=3>页<input type=button value=转页 onClick="location.href='/script/user/list.asp?userid=79444&page=' + this.form.JumpPage.value;"></td></tr></table>
</td>
</tr>
</table>
</form>

㈢ JS如何查找源代码

<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>远程网页源代码读取</title>

<style type="text/css">
/* 页面字体样式 */
body, td, input, textarea {
font-family:Arial;
font-size:12px;
}
</style>

<script type="text/javascript">
//用于创建XMLHttpRequest对象
function createXmlHttp() {
//根据window.XMLHttpRequest对象是否存在使用不同的创建方式
if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest(); //FireFox、Opera等浏览器支持的创建方式
} else {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");//IE浏览器支持的创建方式
}
}

//直接通过XMLHttpRequest对象获取远程网页源代码
function getSource() {
var url = document.getElementById("url").value; //获取目标地址信息

//地址为空时提示用户输入
if (url == "") {
alert("请输入网页地址。");
return;
}

document.getElementById("source").value = "正在加载……"; //提示正在加载
createXmlHttp(); //创建XMLHttpRequest对象
xmlHttp.onreadystatechange = writeSource; //设置回调函数
xmlHttp.open("GET", url, true);
xmlHttp.send(null);
}

//将远程网页源代码写入页面文字区域
function writeSource() {
if (xmlHttp.readyState == 4) {
document.getElementById("source").value = xmlHttp.responseText;
}
}
</script>
</head>

<body>
<h1>远程网页源代码读取</h1>

<div>
地址:<input type="text" id="url">
<input type="button" onclick="getSource()" value="获取源码">
</div>

<textarea rows="10" cols="80" id="source"></textarea>

</body>
</html>
我也是别人那抄的 你试试吧 好的话给我个最佳

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