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vue4 属性 class style

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>

    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{
                    url:https://www.baidu.com/img/bd_logo1.png,
                    w:200px,
                    t:这是一张美丽的图片
                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <!--<img src="http://www.mamicode.com/{{url}}" > 这种方式会报404错 -->   属性是通过bind来绑定的
        <img v-bind:src="url" alt="">
        <img :src="url" alt="">
        <img :src="url" alt="" :width="w" :title="t">
    </div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .red{
            color: red;
        }
        .blue{
            background: blue;
        }
    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{
                    red:red, //是style的red
                    b:blue
                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">   //red是data里面的red,多个
        <strong :class="[red,b]">文字...</strong>
        <strong :class="red">文字...</strong> //单个data里面的red
    </div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .red{
            color: red;
        }
        .blue{
            background: blue;
        }
    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{
                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">   //不是data里的red,是style的red,true表示生肖,
        <strong :class="{red:true,blue:true}">文字...</strong>
    </div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .red{
            color: red;
        }
        .blue{
            background: blue;
        }
    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{
                    a:true,
                    b:false
                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">//不是data里的red,是style的red,true表示生肖,
        <strong :class="{red:a,blue:b}">文字...</strong>
    </div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .red{
            color: red;
        }
        .blue{
            background: blue;
        }
    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{
                    json:{
                        red:true,
                        blue:true
                    }
                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <strong :class="json">文字...</strong>
    </div>
</body>
</html>

 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .red{
            color: red;
        }
        .blue{
            background: blue;
        }
    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{

                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <strong :style="{color:‘red‘}">文字...</strong>
    </div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .red{
            color: red;
        }
        .blue{
            background: blue;
        }
    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{
                    c:{color:red}
                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <strong :style="[c]">文字...</strong>
    </div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .red{
            color: red;
        }
        .blue{
            background: blue;
        }
    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{
                    c:{color:red},
                    b:{backgroundColor:blue}
                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <strong :style="[c,b]">文字...</strong>
    </div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .red{
            color: red;
        }
        .blue{
            background: blue;
        }
    </style>
    <script src="vue.js"></script>
    <script>
        window.onload=function(){
            new Vue({
                el:#box,
                data:{
                    a:{
                        color:red,
                        backgroundColor:gray  //js里面的驼峰写法
                    }
                },
                methods:{
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <strong :style="a">文字...</strong>
    </div>
</body>
</html>

 

vue4 属性 class style