为什么“我的”和”新闻“按钮无法正常使用，还有怎么让这两个按钮在页面上上去点

问题遇到的现象和发生背景
问题相关代码，请勿粘贴截图
运行结果及报错内容
我的解答思路和尝试过的方法
我想要达到的结果
.container-wrapper{
    width: 100vw;
    height: 100vw;
}
.container-wrapper .container{
    width: 100vw;
    height: calc(100vh - 15vw);
    
}
.bottom-wrapper{
    height: 25vw;
    display: flex;
    background-color: white;
    position: fixed;
}
.bottom-wrapper .bottom-btn{
    height:100%;
    width: 50vw;
    display: flex;
    justify-content: center;
}
.bottom-wrapper .bottom-btn .bottom-btn-img{
    height: 100%;
}
.container-news .item{
    height:25vw;
  
    display: flex;
    margin: 1vw;
}
.container-news .item img{
    width: 35vw;
    height: 100%;
}
.container-news .item .right{
    margin-left: 2vw;
}
.container-news .item .right .title{
    font-size: 4vw;
}
.container-news .item .right .date{
    color: #999999;
    font-size: 2.5vw;
    margin-top: 3vw;
}
.container-news .item .right .author{
    font-size: 3vw;
    margin-top: 1vw;
}
.btn-group{
    position: fixed;
    background-color: aliceblue;
    height: 10vw;
    margin-left: 28vw;
}
.btn-group .btn-secondary{
    background-color: burlywood;
}




<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css" integrity="sha384-zCbKRCUGaJDkqS1kPbPd7TveP5iyJE0EjAuZQTgFLD2ylzuqKfdKlfG/eSrtxUkn" crossorigin="anonymous">
    <script src="jquery-3.6.0.min.js"></script>
    <script src="js/content.js"></script>
    <link rel="stylesheet" href="css/content.css">
    <link rel="stylesheet" href="css/reset.css">
</head>
<body>
    <div class="btn-group" role="group" aria-label="Basic example">
        <button type="button" class="btn btn-secondary" onclick="buttonClick()">全部</button>
        <button type="button" class="btn btn-secondary" onclick="buttonClick2()">国际</button>
        <button type="button" class="btn btn-secondary" onclick="buttonClick3()">国内</button>
    </div>
   <div class="container-wrapper">
       <div class="container container-news" id="containerNews">
       
       <div class="item">
        <div class="img">
         <img class="img" src="https://n.sinaimg.cn/news/transform/579/w340h239/20211125/1101-683b931a0f995a11d2410a04f47213cc.jpg" alt="">
        </div>
        <div class="right">
            <div class="title">
             标题：aaaaaaaaaaa
            </div>
            <div class="date">
             时间：2021-01-01 11:11:11
            </div>
            <div class="author">
            作者：人民日报
            </div>
        </div>
    </div>
       </div>
       <div class="container" id="containerUser" style="display:none">
        我的
       </div>
       <div class="bottom-wrapper">
           <div class="bottom-btn" id="newBtn">
               <img class="bottom-btn-img" src="img/新闻.png">
           </div>
           <div class="bottom-btn" id="myBtn">
            <img class="bottom-btn-img" src="img/我的.png">
           </div>
       </div>

   </div>
</body>
</html>


 $('#newBtn').click(function(e){
        e.preventDefault();
        $('#containerNews').show();
        $('#containerUser').hide();

    });
    $('#myBtn').click(function(e){
        e.preventDefault();
        $('#containerNews').hide();
        $('#containerUser').show();

    });
    function buttonClick(){
            $.ajax({
        type:"get",
        url:"http://localhost:8081/user/news",
        dataType:'json',
        success:function(response){
           let data= response.result.data
           let oriHtml="";
           data.forEach(element => {
               oriHtml+=`
               <div class="item" id="item${element.uniquekey}">
           <div class="img">
            <img class="img" src="${element.thumbnail_pic_s}" alt="">
           </div>
           <div class="right">
               <div class="title">
                标题：${element.title}
               </div>
               <div class="date">
                时间：${element.data}
               </div>
               <div class="author">
               作者：${element.author_name}
               </div>
           </div>
       </div>
               
               
               
               
               `
           });
           $('#containerNews').html(oriHtml);

           data.forEach(item=>{
               $('#item'+item.uniquekey).click(function (e) { 
                   e.preventDefault();
                   window.open(item.url);
               });
           })
        },
        error:function(error){
            console.log(err)
        }
    });
    }


    function buttonClick2(){
        $.ajax({
    type:"get",
    url:"http://localhost:8081/user/news?type=guoji",
    dataType:'json',
    success:function(response){
       let data= response.result.data
       let oriHtml="";
       data.forEach(element => {
           oriHtml+=`
           <div class="item" id="item${element.uniquekey}">
       <div class="img">
        <img class="img" src="${element.thumbnail_pic_s}" alt="">
       </div>
       <div class="right">
           <div class="title">
            标题：${element.title}
           </div>
           <div class="date">
            时间：${element.data}
           </div>
           <div class="author">
           作者：${element.author_name}
           </div>
       </div>
   </div>
           
           
           
           
           `
       });
       $('#containerNews').html(oriHtml);

       data.forEach(item=>{
           $('#item'+item.uniquekey).click(function (e) { 
               e.preventDefault();
               window.open(item.url);
           });
       })
    },
    error:function(error){
        console.log(err)
    }
});
}



function buttonClick3(){
    $.ajax({
type:"get",
url:"http://localhost:8081/user/news?type=guonei",
dataType:'json',
success:function(response){
   let data= response.result.data
   let oriHtml="";
   data.forEach(element => {
       oriHtml+=`
       <div class="item" id="item${element.uniquekey}">
   <div class="img">
    <img class="img" src="${element.thumbnail_pic_s}" alt="">
   </div>
   <div class="right">
       <div class="title">
        标题：${element.title}
       </div>
       <div class="date">
        时间：${element.data}
       </div>
       <div class="author">
       作者：${element.author_name}
       </div>
   </div>
</div>
       
       
       
       
       `
   });
   $('#containerNews').html(oriHtml);

   data.forEach(item=>{
       $('#item'+item.uniquekey).click(function (e) { 
           e.preventDefault();
           window.open(item.url);
       });
   })
},
error:function(error){
    console.log(err)
}
});
}

img

  1. jquery库引入换成
  2. 底部我的，新闻按钮位置没问题，就是固定在底部，我估计是你图片大小设置不对，导致图片显示不全，所以你觉得偏下了，你可以设置图片background-size:100% 100% 或者background-size:cover
  3. 你的 引入太早了，放在最后，标签上面。因为你要操作dom(页面中的元素),所以要在html之后引入，不然都获取不到元素

如有帮助，望采纳 ^.^

img

img

img

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css" integrity="sha384-zCbKRCUGaJDkqS1kPbPd7TveP5iyJE0EjAuZQTgFLD2ylzuqKfdKlfG/eSrtxUkn" crossorigin="anonymous">
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.js"></script>
    <link rel="stylesheet" href="css/content.css">
    <link rel="stylesheet" href="css/reset.css">

</head>
<body>
    <div class="btn-group" role="group" aria-label="Basic example">
        <button type="button" class="btn btn-secondary" onclick="buttonClick()">全部</button>
        <button type="button" class="btn btn-secondary" onclick="buttonClick2()">国际</button>
        <button type="button" class="btn btn-secondary" onclick="buttonClick3()">国内</button>
    </div>
   <div class="container-wrapper">
       <div class="container container-news" id="containerNews">
       <div class="item">
        <div class="img">
         <img class="img" src="https://n.sinaimg.cn/news/transform/579/w340h239/20211125/1101-683b931a0f995a11d2410a04f47213cc.jpg" alt="">
        </div>
        <div class="right">
            <div class="title">
             标题：aaaaaaaaaaa
            </div>
            <div class="date">
             时间：2021-01-01 11:11:11
            </div>
            <div class="author">
            作者：人民日报
            </div>
        </div>
    </div>
       </div>
       <div class="container" id="containerUser" style="display:none">
        我的
       </div>
       <div class="bottom-wrapper">
           <div class="bottom-btn" id="newBtn">
               <img class="bottom-btn-img" src="https://img0.baidu.com/it/u=1718241065,2019855389&fm=26&fmt=auto">
           </div>
           <div class="bottom-btn" id="myBtn">
            <img class="bottom-btn-img" src="https://img0.baidu.com/it/u=1718241065,2019855389&fm=26&fmt=auto">
           </div>
       </div>
   </div>
   
   
   <script>
   
    $('#newBtn').click(function(e){
           e.preventDefault();
           $('#containerNews').show();
           $('#containerUser').hide();
       });
       $('#myBtn').click(function(e){
           e.preventDefault();
           $('#containerNews').hide();
           $('#containerUser').show();
       });
       function buttonClick(){
               $.ajax({
           type:"get",
           url:"http://localhost:8081/user/news",
           dataType:'json',
           success:function(response){
              let data= response.result.data
              let oriHtml="";
              data.forEach(element => {
                  oriHtml+=`
                  <div class="item" id="item${element.uniquekey}">
              <div class="img">
               <img class="img" src="${element.thumbnail_pic_s}" alt="">
              </div>
              <div class="right">
                  <div class="title">
                   标题：${element.title}
                  </div>
                  <div class="date">
                   时间：${element.data}
                  </div>
                  <div class="author">
                  作者：${element.author_name}
                  </div>
              </div>
          </div>
                  
                  
                  `
              });
              $('#containerNews').html(oriHtml);
              data.forEach(item=>{
                  $('#item'+item.uniquekey).click(function (e) { 
                      e.preventDefault();
                      window.open(item.url);
                  });
              })
           },
           error:function(error){
               console.log(err)
           }
       });
       }
    
       function buttonClick2(){
           $.ajax({
       type:"get",
       url:"http://localhost:8081/user/news?type=guoji",
       dataType:'json',
       success:function(response){
          let data= response.result.data
          let oriHtml="";
          data.forEach(element => {
              oriHtml+=`
              <div class="item" id="item${element.uniquekey}">
          <div class="img">
           <img class="img" src="${element.thumbnail_pic_s}" alt="">
          </div>
          <div class="right">
              <div class="title">
               标题：${element.title}
              </div>
              <div class="date">
               时间：${element.data}
              </div>
              <div class="author">
              作者：${element.author_name}
              </div>
          </div>
      </div>
              
              
              `
          });
          $('#containerNews').html(oriHtml);
          data.forEach(item=>{
              $('#item'+item.uniquekey).click(function (e) { 
                  e.preventDefault();
                  window.open(item.url);
              });
          })
       },
       error:function(error){
           console.log(err)
       }
   });
   }
    
   function buttonClick3(){
       $.ajax({
   type:"get",
   url:"http://localhost:8081/user/news?type=guonei",
   dataType:'json',
   success:function(response){
      let data= response.result.data
      let oriHtml="";
      data.forEach(element => {
          oriHtml+=`
          <div class="item" id="item${element.uniquekey}">
      <div class="img">
       <img class="img" src="${element.thumbnail_pic_s}" alt="">
      </div>
      <div class="right">
          <div class="title">
           标题：${element.title}
          </div>
          <div class="date">
           时间：${element.data}
          </div>
          <div class="author">
          作者：${element.author_name}
          </div>
      </div>
   </div>
          
          
          `
      });
      $('#containerNews').html(oriHtml);
      data.forEach(item=>{
          $('#item'+item.uniquekey).click(function (e) { 
              e.preventDefault();
              window.open(item.url);
          });
      })
   },
   error:function(error){
       console.log(err)
   }
   });
   }
    
   </script>
</body>
</html>