- 技术博客
- 电商系统前后端开发（Vue+SSM）(4) - vue 改变样式
1 class 动态绑定
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue 测试案例
</title>
<style>
.mydiv{
width: 400px;
height:220px;
background-color: green;
}
.red{
background-color: red;
}
.yellow{
background-color: yellow;
}
</style>
</head>
<body>
<div id="app">
<div v-bind:class="{red:temp}" class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<button type="button" @click="temp=!temp">点击
</button>
</div>
</body>
<script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.10/vue.js"></script>
<script>
new Vue({
el:'#app',
data:{
temp:false,
},
})
</script>
</html>
2 加入 computed
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue 测试案例
</title>
<style>
.mydiv {
width: 400px;
height: 100px;
background-color: green;
}
.red {
background-color: red;
}
.yellow {
background-color: yellow;
}
.myWidth {
width: 450px;
height: 50px;
}
</style>
</head>
<body>
<div id="app">
<div v-bind:class="{red:temp}" class="mydiv"></div>
<hr/>
<div :class="myClassStyle"></div>
<hr/>
<div class="mydiv"></div>
<hr/>
<button type="button" @click="temp=!temp">点击
</button>
</div>
</body>
<script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.10/vue.js"></script>
<script>
new Vue({
el: '#app',
data: {
temp: false,
},
computed: {
myClassStyle: function () {
return {
red: this.temp,
myWidth: this.temp,
}
}
}
})
</script>
</html>
