关于html背景无法显示

请各位帮我看一下哪里出错了！谢谢！
本来想在搜索框中加入背景图片的，但是无论我怎么设置都还是不能显示出背景图
我尝试过设置背景颜色是可以的但是图片缺不行

<!DOCTYPE html>
<!-- 简体中文 --><html lang="zh-cmn-Hans">

    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">       
        <link href="css\font-awesome.min.css" rel="stylesheet">
        <link href="css\bootstrap.min.css" rel="stylesheet">
        <title>商城主页面</title>
        <style>
           .logo{
               width: 1000px;
               height: 150px;
               margin: 0,auto;
           }

           .bg{
               background:  url("img\cheakimg.jpg") no-repeat  center;
               background-size: cover;     
                       
               width: 600px;
               height: 150px;
               align-items: center;
               margin-left: 0px;
           }
        </style>
    </head>
<body>
    <div class="logo">
        <img src="img\logo.png" width="300px" height="150px" style="margin-left: 60px; margin-right: 0px;">
        <div class="bg" style="float: right;display: block;  ">
            <form style="margin-top: 60px; ">
                <input type="text" value="捏麻麻滴好狗粮">
                <input type="button" value="Search">
            </form>
        
        
    </div>
    
        
   
</body> 
</html>

试着把这个类添加上去


```javascript
 .bg1{
               background:  url("001.png") no-repeat  center;
               background-size: cover;     
               width: 300px;
               height: 80px;
               align-items: center;
               margin-left: 0px;
           }

```

只能说明图片地址不对。文件结构截个图。网络图片可以

<!DOCTYPE html>
<!-- 简体中文 --><html lang="zh-cmn-Hans">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">       
        <link href="css\font-awesome.min.css" rel="stylesheet">
        <link href="css\bootstrap.min.css" rel="stylesheet">
        <title>商城主页面</title>
        <style>
           .logo{
               width: 1000px;
               height: 150px;
               margin: 0,auto;
           }
           .bg{
               background:  url("https://file06.16sucai.com/2018/0807/8c5e5ec44d75b76f09f1cba404e8e056.jpg") no-repeat  center;
               background-size: cover;     
               width: 600px;
               height: 150px;
               align-items: center;
               margin-left: 0px;
           }
        </style>
    </head>
<body>
    <div class="logo">
        <img src="img\logo.png" width="300px" height="150px" style="margin-left: 60px; margin-right: 0px;">
        <div class="bg" style="float: right;display: block;  ">
            <form style="margin-top: 60px; ">
                <input type="text" value="捏麻麻滴好狗粮">
                <input type="button" value="Search">
            </form>
        
    </div>
        
</body> 
</html>