Adding method: 1. Use the ":class="['class name']" statement to add; 2. Use ":class="['class name 1','class name 2',{attribute Name (class name):'Attribute value (true or false)}]"" statement; 3. Use the ":class="{Attribute name (class name):true}" statement; 4. Use ":style="{ 'Style name':'Style value'}"" statement; 5. Use the ":style="style"" statement to add; 6. Use the ":style="[data]"" statement.
The operating environment of this tutorial: windows7 system, vue3 version, DELL G3 computer.
The class name must be enclosed in quotation marks;
1. Array
<h1 :class = "['类名1','类名2']">这种方法 需要用 v-bind: => : 绑定</h1>
2. Use ternary expressions in the array Formula
<h1 :class = "['类名1','类名2',表达式?'类名3':'']">这种方法 需要用 v-bind: => : 绑定</h1>
3. Nested objects in array
<h1 :class = "['类名1','类名2',{属性名(类名):'属性值(true或false)}]">这种方法 需要用 v-bind: => : 绑定</h1>
4. Directly applicable objects
<h1 :class = "{属性名(类名1):true,属性名(类名2):true}">这种方法 需要用 v-bind: => : 绑定</h1>
1. Directly pass:style on the element
<h1 :style = "{'样式名':'样式值'}">这种方法 需要用 v-bind: => : 绑定</h1>
2. Define the style object into data and reference it in :style
<h1 :style = "vue里的样式">这种方法 需要用 v-bind: => : 绑定</h1>
3. In :style, reference multiple style objects on data through an array;
<h1 :style = "[data1,data2]">这种方法 需要用 v-bind: => : 绑定</h1>
Code example:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Vue样式的运用</title> <style> * { margin: 0; padding: 0; } .box { width: 150px; height: 150px; background: skyblue; line-height: 150px; text-align: center; } .border { border-radius: 50%; } .color { color: #fff; font-size: 24px; } </style> </head> <body> <div id="app"> <button @click="tagger = !tagger">切换</button> <!-- 添加样式/切换样式 --> <!-- 对象方式 border 数据模型 tagger 真假 真显示 假隐藏--> <!-- <div class="box" :class="{'border':tagger}">添加style样式</div> --> <!-- 表达式 --> <!-- <div :class="tagger ? 'border' : ''" class="box">添加style样式</div> --> <!-- 数组 --> <div :class="tagger ? ['box','border'] : ['box']">添加style样式</div> </div> <script src="https://cdn.jsdelivr.net/npm/vue"></script> <script> let vm = new Vue({ el: '#app', data: { tagger : true, vstyle : ['border','box'], vObj : {"border":true,"color":true,"box":true} }, methods: { } }) </script> </body> </html>
(Learning video sharing: vuejs introductory tutorial, Basic programming video)
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