vue中的样式绑定 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>vue中的样式绑定</title>
    <script src="./vue.js"></script>
    <style>
        .activated {
            color: red;
        }
        .activated-one{
            font-size: 78px;
        }
    </style>
</head>
<body>
<div id="app">
    <div @click='handleDivClick'
         :class="[activated,activatedOne]">
        <!--:class = "{activated:isActivated}"-->
        <!--class对象绑定-->
        hello world
    </div>
</div>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            // isActivated:false
            activated: '',
            activatedOne:''
        },
        methods: {
            handleDivClick: function () {
                // this.isActivated = !this.isActivated  //取反
                // if (this.activated === "activated") {
                //     this.activated = '';
                // } else {
                //
                //     this.activated = "activated";     //代码过于冗余
                // }
                this.activated = this.activated === "activated" ? "" : "activated"  //三元表达式
                this.activatedOne = this.activatedOne === "activated-one" ? "" : "activated-one"  //三元表达式
            }
        }

    })
</script>
</body>
</html>

<!--
两种方法：一个对对象进行绑定，一个是对数组进行绑定
-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Vue中内联样式绑定</title>
    <script src="./vue.js"></script>
</head>
<body>
    <div id="app">
        <!--<div :style="styleObj" @click="handleDivClick">-->
        <div :style="[styleObj,{fontSize:'20px'}]" @click="handleDivClick">
            hello world
        </div>
    </div>
    <script>
        var vm = new Vue({
            el:"#app",
            data:{
              styleObj:{
                  color:"black"
              }
            },
            methods:{
                handleDivClick:function () {
                    this.styleObj.color = this.styleObj.color === 'black' ? "red" : "black";
                }
            }
        })
    </script>
</body>
</html>

<!--
两种方法：一个对对象进行绑定，一个是对数组进行绑定
-->

 

posted @ 2018-11-15 10:18  alexbiu  阅读(311)  评论(0)    收藏  举报