che用户信息时如何显示表格？

时间：2019-03-06 02:00:27

标签： javascript html css web

我想编写一个代码，如果您按下按钮并且用户名和密码正确。然后会显示一张表格，其中包含照片和指向其Instagram的链接。

在 script 标记中的 功能 内使用 table 标记时函数损坏，并且html本身没有函数。所以当按下按钮时，我应该在哪里显示我的桌子？

这是我的代码：

<html>

<head>

<title>balalar</title>

<script type="text/javascript">

function check(){

var username=document.getElementById("username").value;
var password=document.getElementById("password").value;

    if(username == "user1" && password == "1234"){

        alert("hello user")

    <!--want to put the table here. but it breaks the function-->

    }


      else
      { 
        alert("chek username and password"); 
      }

  } 

</script>

</head>


<body>

<form align="center">

     username:<input type="text" name="username"     id="username" /><br>
     </br>
     password:<input type="password" name="password"     id="password"/><br>
     </br>
     <input type="button" value="login" id="login" onclick="return
     check()"/>

</form>

</body> 

</html>

这是我的桌子：

<!DOCTYPE html>
<html>
<link rel=stylesheets; href="css.css">
<head>
<title>BALALAR</title>

<style>

table, th, td {

    border:5px solid black;
    border-collapse: collapse;
}

th, td {

    padding: 30px;
}

tr:nth-child(even) {
    background: pink;
}

th {
    background: gray;
}


</style>

</head>

<body>

<table align="center">
    <caption style="color: #ff99ac"> <h1>[BALALAR]</h1> </caption>


    <tr> <!--heading------------------------------------------------------------>

        <th>photo</th>
        <th>name</th>
        <th>age</th>
        <th>info</th>
        <th>instagram</th>

    </tr>

    <tr> <!--lucifer------------------------------------------------------------>

        <td> <center> <img src="https://scontent-ams3-1.cdninstagram.com/vp/17d60601e17a27d3a0196470f00c55a4/5CF8DA8C/t51.2885-15/e35/50850072_2165205533518446_3117212119304625148_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="200px"> </center> </td>
        <td> <center>lucifersexdoll</center> </td>
        <td> <center>18</center> </td>
        <td> <center>instagram star and tiktoker</center> </td>
        <td> <center> <a href="https://www.instagram.com/lucifersexdoll/?hl=en"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px"> </a> </center> </td>

    </tr>

    <tr> <!--belle delphine----------------------------------------------------->

        <td> <center> <img src="https://scontent-dfw5-1.cdninstagram.com/vp/6331b02f48e920975e98434c595fd4ee/5CE47C32/t51.2885-15/e35/41760483_210825032975228_2673466538809180596_n.jpg?_nc_ht=scontent-dfw5-1.cdninstagram.com" height="200px" width="170px"> </center> </td>
        <td> <center>belle delphine</center> </td> 
        <td> <center>19</center></td>
        <td> <center>instagram star and snapchat thot</center></td>
        <td> <center> <a href="https://www.instagram.com/belle.delphine/?hl=en"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px"> </a> </center> </td>

    </tr>

    <tr> <!--Georgia Twinn------------------------------------------------------>

        <td> <center> <img src="https://scontent-frx5-1.cdninstagram.com/vp/b4cdaabe45fd41c4d36e18c074a0cb71/5CEFBA3C/t51.2885-15/e35/43986219_288982548424250_1512646608107907870_n.jpg?_nc_ht=scontent-frx5-1.cdninstagram.com" style="transform: rotate(-90deg);" height="200px" width="200" > </center> </td>
        <td> <center>Georgia Twinn</center> </td>
        <td> <center>15</center> </td>
        <td> <center> instagram star and youtuber</center> </td>
        <td> <center> <a href="https://www.instagram.com/georgialeetwinn/"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px" > </a> </center> </td>

    </tr>

    <tr> <!--lilsaggester------------------------------------------------------->

        <td> <center> <img src="https://scontent-ams3-1.cdninstagram.com/vp/b7b351d27e76a70aed0dc97ca2946b31/5CF7E289/t51.2885-15/e35/44478694_259861178046212_7053862547100372241_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="200px" > </center> </td>
        <td> <center>hannah fabel</center> </td>
        <td> <center>16</center> </td>
        <td> <center>tiktoker</center> </td>
        <td> <center> <a href="https://www.instagram.com/aestheticallyhannah/"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px" > </a> </center> </td>

    </tr>

    <tr> <!--cyxll-------------------------------------------------------------->

        <td> <center> <img src="https://scontent-ams3-1.cdninstagram.com/vp/fe0da5e3353e102fd30a771e7f18d793/5CEA7C9B/t51.2885-15/e35/50510784_321000775215940_7823002975742791621_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="250px"> </center> </td>
        <td> <center>cyxll</center> </td>
        <td> <center>unknown</center> </td>
        <td> <center>instagram user</center> </td>
        <td> <center> <a href="https://www.instagram.com/cyxll/?hl=en"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px"> </a> </center> </td>

    </tr>

    <tr> <!--gal gadot---------------------------------------------------------->

        <td> <center><img src="https://scontent-ams3-1.cdninstagram.com/vp/85ba393e3d05f6047fea8ac9ee61edd4/5D250597/t51.2885-15/e35/40265259_229384887926581_2920908417464813508_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="200px"> </center> </td>
        <td> <center>gal gadot</center> </td>
        <td> <center>33</center> </td>
        <td> <center>actress</center> </td>
        <td> <center> <a href="https://www.instagram.com/gal_gadot/?hl=en"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px"> </a></center> </td>

    </tr>   


</table>

</body>

</html>

以后想为不同的用户放置不同的表。

3 个答案:

答案 0 :(得分：1)

您可以将表格保留在HTML正文中……并制作#tableID {display: none;}

在JS中：

function check(){
  var username=document.getElementById("username").value;
  var password=document.getElementById("password").value;
  if(username == "user1" && password == "1234"){
    alert("hello user")
    document.getElementById('tableID').style.display = 'block';
   }
  else {alert("chek username and password");}
}

但是，即使代码太具体，当必须将HTML放在JS中时，也必须转义所有特殊字符（搜索> JavaScript字符串转义）

大多带有符号\ ...有时带有[]或HTML-code

例如，

<td> <center> <img src="https://scontent-ams3-1.cdninstagram.com/vp/17d60601e17a27d3a0196470f00c55a4/5CF8DA8C/t51.2885-15/e35/50850072_2165205533518446_3117212119304625148_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="200px"> </center> </td>

必须替换为：

<td> <center> <img src=&quot;https:\/\/scontent-ams3-1.cdninstagram.com\/vp\/17d60601e17a27d3a0196470f00c55a4\/5CF8DA8C\/t51.2885-15\/e35\/50850072_2165205533518446_3117212119304625148_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com&quot; height=\'200px\' width=\'200px\'> <\/center> <\/td>

您可以在这里尝试这样的操作--https://liveweave.com/ 它具有舒适的颜色，可以告诉您是否有错误。

P.s。 “您能再解释一下吗？”：

<table id="AnyName"> ... </table>

每个HTML元素可以具有唯一的ID，该ID可以通过JavaScript定位。 另外，如果您使用.class {}选择CSS中的类，则可以使用#id {}选择ID。因此，我们使用#AnyName {display: none}

制作了最初不可见的表

然后单击...，如果用户名和密码匹配-我们通过ID获取元素并使其可见：

document.getElementById('AnyName').style.display = 'block';

显示“使用此ID替换元素，并更改其样式”
可能有.style.border = '1px solid red';
或.style.backgroundColor = 'red';
但是我们需要使其可见...因此，display = 'block';

答案 1 :(得分：0)

有很多方法可以实现这一目标。我有两个给你：

  1. 解决方案：重定向到新页面
  2. 解决方案：执行Ajax-Call并将内容替换为表格

下面是一些代码：

popular = open("C:/Users/NAME/FilesForPyCharm/popular.txt")
words = [line.strip() for line in popular]
poss = [j.split() for j in [decipher(i, txt) for i in range(1, 26)]]
for k in poss:
    if set(k).issubset(set(words)):
        return f"The key is {i} and the deciphered text is{' '.join(k)}."

function getAjax(url, success) {
    var xhr = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP');
    xhr.open('GET', url);
    xhr.onreadystatechange = function() {
        if (xhr.readyState>3 && xhr.status==200) success(xhr.responseText);
    };
    xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
    xhr.send();
    return xhr;
}

// example request
//getAjax('http://foo.bar/?p1=1&p2=Hello+World', function(data){ console.log(data); });

对于两个示例，您都需要一个名为<html> <head> <title>balalar</title> <script type="text/javascript"> function check(){ var username=document.getElementById("username").value; var password=document.getElementById("password").value; if(username == "user1" && password == "1234"){ alert("hello user") // 1. Solution - Redirect to another "Page" window.location.href = "/table.html?username="+username; // 2. Solution - do an Ajax Call and render response getAjax("/table.html?username="+username, function(response){ // replace body with new content ("table") document.getElementsByTagName('body')[0].innerHTML = response; }); } else { alert("chek username and password"); } } </script> </head> <body> <form align="center"> username:<input type="text" name="username" id="username" /><br> </br> password:<input type="password" name="password" id="password"/><br> </br> <input type="button" value="login" id="login" onclick="return check()"/> </form> </body> </html>的文件，其表内容位于table.html旁边

答案 2 :(得分：0)

我看到您将表格和登录页面留在2个不同的html文件中。将其放在html页面中并在检查功能（）中处理：

function check(){

var username=document.getElementById("username").value;
var password=document.getElementById("password").value;

    if(username == "user1" && password == "1234"){

        alert("hello user")

    <!--want to put the table here. but it breaks the function-->
    
    document.getElementsByTagName("table")[0].style.display = "block";
    document.getElementsByTagName("form")[0].style.display = "none";

    }


      else
      { 
        alert("chek username and password"); 
      }

  } 
<html>

<head>

<title>balalar</title>

<style>

table, th, td {

    border:5px solid black;
    border-collapse: collapse;
}

th, td {

    padding: 30px;
}

tr:nth-child(even) {
    background: pink;
}

th {
    background: gray;
}

table{
  display: none
  }
</style>

</head>


<body>

<form align="center">

     username:<input type="text" name="username"     id="username" /><br>
     </br>
     password:<input type="password" name="password"     id="password"/><br>
     </br>
     <input type="button" value="login" id="login" onclick="check()"/>

</form>


<table align="center">
    <caption style="color: #ff99ac"> <h1>[BALALAR]</h1> </caption>


    <tr> <!--heading------------------------------------------------------------>

        <th>photo</th>
        <th>name</th>
        <th>age</th>
        <th>info</th>
        <th>instagram</th>

    </tr>

    <tr> <!--lucifer------------------------------------------------------------>

        <td> <center> <img src="https://scontent-ams3-1.cdninstagram.com/vp/17d60601e17a27d3a0196470f00c55a4/5CF8DA8C/t51.2885-15/e35/50850072_2165205533518446_3117212119304625148_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="200px"> </center> </td>
        <td> <center>lucifersexdoll</center> </td>
        <td> <center>18</center> </td>
        <td> <center>instagram star and tiktoker</center> </td>
        <td> <center> <a href="https://www.instagram.com/lucifersexdoll/?hl=en"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px"> </a> </center> </td>

    </tr>

    <tr> <!--belle delphine----------------------------------------------------->

        <td> <center> <img src="https://scontent-dfw5-1.cdninstagram.com/vp/6331b02f48e920975e98434c595fd4ee/5CE47C32/t51.2885-15/e35/41760483_210825032975228_2673466538809180596_n.jpg?_nc_ht=scontent-dfw5-1.cdninstagram.com" height="200px" width="170px"> </center> </td>
        <td> <center>belle delphine</center> </td> 
        <td> <center>19</center></td>
        <td> <center>instagram star and snapchat thot</center></td>
        <td> <center> <a href="https://www.instagram.com/belle.delphine/?hl=en"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px"> </a> </center> </td>

    </tr>

    <tr> <!--Georgia Twinn------------------------------------------------------>

        <td> <center> <img src="https://scontent-frx5-1.cdninstagram.com/vp/b4cdaabe45fd41c4d36e18c074a0cb71/5CEFBA3C/t51.2885-15/e35/43986219_288982548424250_1512646608107907870_n.jpg?_nc_ht=scontent-frx5-1.cdninstagram.com" style="transform: rotate(-90deg);" height="200px" width="200" > </center> </td>
        <td> <center>Georgia Twinn</center> </td>
        <td> <center>15</center> </td>
        <td> <center> instagram star and youtuber</center> </td>
        <td> <center> <a href="https://www.instagram.com/georgialeetwinn/"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px" > </a> </center> </td>

    </tr>

    <tr> <!--lilsaggester------------------------------------------------------->

        <td> <center> <img src="https://scontent-ams3-1.cdninstagram.com/vp/b7b351d27e76a70aed0dc97ca2946b31/5CF7E289/t51.2885-15/e35/44478694_259861178046212_7053862547100372241_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="200px" > </center> </td>
        <td> <center>hannah fabel</center> </td>
        <td> <center>16</center> </td>
        <td> <center>tiktoker</center> </td>
        <td> <center> <a href="https://www.instagram.com/aestheticallyhannah/"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px" > </a> </center> </td>

    </tr>

    <tr> <!--cyxll-------------------------------------------------------------->

        <td> <center> <img src="https://scontent-ams3-1.cdninstagram.com/vp/fe0da5e3353e102fd30a771e7f18d793/5CEA7C9B/t51.2885-15/e35/50510784_321000775215940_7823002975742791621_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="250px"> </center> </td>
        <td> <center>cyxll</center> </td>
        <td> <center>unknown</center> </td>
        <td> <center>instagram user</center> </td>
        <td> <center> <a href="https://www.instagram.com/cyxll/?hl=en"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px"> </a> </center> </td>

    </tr>

    <tr> <!--gal gadot---------------------------------------------------------->

        <td> <center><img src="https://scontent-ams3-1.cdninstagram.com/vp/85ba393e3d05f6047fea8ac9ee61edd4/5D250597/t51.2885-15/e35/40265259_229384887926581_2920908417464813508_n.jpg?_nc_ht=scontent-ams3-1.cdninstagram.com" height="200px" width="200px"> </center> </td>
        <td> <center>gal gadot</center> </td>
        <td> <center>33</center> </td>
        <td> <center>actress</center> </td>
        <td> <center> <a href="https://www.instagram.com/gal_gadot/?hl=en"> <img src="https://www.edigitalagency.com.au/wp-content/uploads/new-instagram-logo-png-transparent.png" height="50px" width="50px"> </a></center> </td>

    </tr>   


</table>

</body> 

</html>

如果您只想在表格中显示一行，请为其设置ID，并为具有相应ID的行设置display: block

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