vue项目运行后网页界面空白显示，无内容，如何解决？

vue代码如下：

<!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>vue-HTML</title>
</head>

<body>
<!-- html结构 -->
<div id="app">
    <p v-html="content"></p>
    <p v-text="content"></p>
</div>
<script type="text/javascript" src="https://cdn.jsdeliver.net/npm/vue/dist/vue.js"></script>
<script>
    import Vue from "vue";

    let app = new Vue(
        {
            el: "#app",
            data: {
                // content: "mac"
                content: "<a href='https://www.itheima.com>黑马程序员</a>'"
            }
        }
    );
</script>
</body>

</html>

问题，如图片所示，运行之后无任何显示，大致问题是什么导致？：

img

三个问题：
1、https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js链接问题
2、import Vue from "vue" 这个你得装依赖
3、content值的标点符号问题


<!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>vue-HTML</title>
</head>
 
<body>
<!-- html结构 -->
<div id="app">
    <p v-html="content"></p>
    <p v-text="content"></p>
</div>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<script>
    // import Vue from "vue";
 
    let app = new Vue(
        {
            el: "#app",
            data: {
                // content: "mac"
                content: "<a href='https://www.itheima.com'>黑马程序员</a>"
            }
        }
    );
</script>
</body>
 
</html>

content: "<a href='https://www.itheima.com>黑马程序员'"
这一行写错了，仔细看看引号

  1. 你的vue引入的cdn地址不能用
  2. 不能在script type非module下写import Vue from 'vue'
  3. content内容引号有点错乱
<!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>vue-HTML</title>
</head>
 
<body>
<!-- html结构 -->
<div id="app">
    <p v-html="content"></p>
    <p v-text="content"></p>
</div>
<script src="https://lib.baomitu.com/vue/2.7.7/vue.min.js"></script>
<script>
    // import Vue from "vue";
    setTimeout(() => {
        window
        debugger
        let app = new Vue(
        {
            el: "#app",
            data: {
                // content: "mac"
                content: "<a href='https://www.itheima.com'>黑马程序员</a>"
            }
        }
    );
    }, 3000)
    
</script>
</body>
 
</html>