Vue入門---屬性、style和class綁定方法

時間 2019-12-08

標籤 vue 入門屬性 style class 綁定方法简体版

原文原文鏈接

一、用對象的方法綁定class

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <meta charset="UTF-8">
 5    <title>class與style綁定</title>
 6    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
 7    <script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
 8    <style>
 9       .class1{
10          color: #f00;
11       }
12       .class2{
13          background-color: #00f;
14       }
15    </style>
16 </head>
17 <body>
18 <div class="test">
19    <div class="otherClass" :class="{'class1':name1,'class2':name2}">我是娃哈哈</div> <!--方法一:用對象的方式實現  name1和name2是boolean型,爲true時給元素加上對應的class，爲false不添加-->
20 </div>
21 <script type="text/javascript">
22    var myVue = new Vue({
23       el:".test",
24       data: {
25          name1: true,
26          name2: false,
27       }
28    })
29 </script>
30 </body>
31 </html>

實現效果:javascript

關於使用對象綁定class,還能夠用另一種寫法:html

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <meta charset="UTF-8">
 5    <title>class與style綁定</title>
 6    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
 7    <script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
 8    <style>
 9       .class1{
10          color: #f00;
11       }
12       .class2{
13          background-color: #00f;
14       }
15    </style>
16 </head>
17 <body>
18 <div class="test">
19    <div class="otherClass" :class="classObj">我是娃哈哈</div> <!--方法一:用對象的方式實現 ,true給元素加上對應的class，爲false不添加-->
20 </div>
21 <script type="text/javascript">
22    var myVue = new Vue({
23       el:".test",
24       data: {
25          classObj: {
26             class1: true,
27             class2: false,
28          }
29 
30       }
31    })
32 </script>
33 </body>
34 </html>

實現效果:vue

二、用數組的方法綁定class

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <meta charset="UTF-8">
 5    <title>class與style綁定</title>
 6    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
 7    <script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
 8    <style>
 9       .class1{
10          color: #f00;
11       }
12       .class2{
13          background-color: #ff0;
14       }
15    </style>
16 </head>
17 <body>
18 <div class="test">
19    <div class="otherClass" :class="[name1,name2]">我是娃哈哈</div> <!--方法二:用數組的方式實現 -->
20 </div>
21 <script type="text/javascript">
22    var myVue = new Vue({
23       el:".test",
24       data: {
25             name1: 'class1',
26             name2: 'class2',
27 
28       }
29    })
30 </script>
31 </body>
32 </html>

實現效果:java

其實在數組中還能夠用判斷是否顯示這個類名,舉個例子:node

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <meta charset="UTF-8">
 5    <title>class與style綁定</title>
 6    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
 7    <script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
 8    <style>
 9       .class1{
10          color: #f00;
11       }
12       .class2{
13          background-color: #ff0;
14       }
15    </style>
16 </head>
17 <body>
18 <div class="test">
19    <div class="otherClass" :class="[name1, isShow? name2 : '']">我是娃哈哈</div> <!--方法一:用數組的方式實現 ，採用三元表達式,條件爲true時顯示-->
20 </div>
21 <script type="text/javascript">
22    var myVue = new Vue({
23       el:".test",
24       data: {
25             name1: 'class1',
26             name2: 'class2',
27             isShow: false,
28 
29       }
30    })
31 </script>
32 </body>
33 </html>

實現效果是:數組

3、用數組和對象混合的方法綁定class

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <meta charset="UTF-8">
 5    <title>class與style綁定</title>
 6    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
 7    <script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
 8    <style>
 9       .class1{
10          color: #f00;
11       }
12       .class2{
13          background-color: #ff0;
14       }
15    </style>
16 </head>
17 <body>
18 <div class="test">
19    <div class="otherClass" :class="[name1, {class2 :isShow}]">我是娃哈哈</div> <!--方法三:用數組對象組合的方式實現，條件爲true時顯示-->
20 </div>
21 <script type="text/javascript">
22    var myVue = new Vue({
23       el:".test",
24       data: {
25             name1: 'class1',
26             class2: 'name2',
27             isShow: true,
28 
29       }
30    })
31 </script>
32 </body>
33 </html>

實現的效果:url

4、用對象的方式實現style綁定

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <meta charset="UTF-8">
 5    <title>class與style綁定</title>
 6    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
 7    <script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
 8    <style>
 9       .class1{
10          color: #f00;
11       }
12       .class2{
13          background-color: #ff0;
14       }
15    </style>
16 </head>
17 <body>
18 <div class="test">
19    <div class="otherClass" :style="{color: color, width: width + 'px'}">我是娃哈哈</div> <!--方法三:用對象的方式實現-->
20 </div>
21 <script type="text/javascript">
22    var myVue = new Vue({
23       el:".test",
24       data: {
25             color: 'red',
26             width: 100,
27 
28       }
29    })
30 </script>
31 </body>
32 </html>

實現效果以下:spa

其實也能夠寫爲第二種方式:scala

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <meta charset="UTF-8">
 5    <title>class與style綁定</title>
 6    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
 7    <script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
 8 </head>
 9 <body>
10 <div class="test">
11    <div class="otherClass" :style= "styleObj">我是娃哈哈</div> <!--方法三:用對象的方式實現-->
12 </div>
13 <script type="text/javascript">
14    var myVue = new Vue({
15       el:".test",
16       data: {
17          styleObj: {
18             color: 'red',
19             width: '200px',
20          }
21 
22 
23       }
24    })
25 </script>
26 </body>
27 </html>

實現結果是:3d

5、用數組和對象混合的方式實現style綁定

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4    <meta charset="UTF-8">
 5    <title>class與style綁定</title>
 6    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
 7    <script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
 8 </head>
 9 <body>
10 <div class="test">
11    <div class="otherClass" :style= "[styleObj1,styleObj2]">我是娃哈哈</div> <!--方法三:用對象的方式實現-->
12 </div>
13 <script type="text/javascript">
14    var myVue = new Vue({
15       el:".test",
16       data: {
17          styleObj1: {
18             color: 'red',
19             width: '200px',
20          },
21          styleObj2: {
22             backgroundColor: '#ff0'
23          }
24 
25 
26       }
27    })
28 </script>
29 </body>
30 </html>