千峰商城-springboot项目搭建-19-vue的基本语法
基本结构:
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <script src="js/vue.js"></script> </head> <body> <div id="container"> {{code}} 从vm中获取的数据为:{{str}} </div> <script type="text/javascript"> var vm = new Vue({ el:"#container", data:{ code:101, str:"cqyzs" } }); </script> </body> </html>
1.基本类型数据和字符串
{{code}}
{{str}}
-------------------------------------------
data:{
code:101,
str:"test"
}
2.对象类型数据
(支持ognl语法)
{{stu.stuNum}}
--------------------------
stu:{
stuNum:"10001",
stuName:"张三",
tudGender:"M",
stuAge:20
}
3.条件:v-if
<label v-if="stu.stuGender=='M' ">男</label> <br /> ------------------------------------------------------------------ stu:{ stuNum:"10001", stuName:"张三", stuGender:"M", stuAge:20 }
4.循环:v-for
<table border="1" cellspacing="0" width="400"> <tr> <th>序号</th> <th>学号</th> <th>姓名</th> <th>性别</th> <th>年龄</th> </tr> <tr v-for="s,index in stus"> <td>{{index+1}}</td> <td>{{s.stuNum}}</td> <td>{{s.stuName}}</td> <td> <label v-if="s.stuGender == 'M'">男</label> <label v-if="s.stuGender == 'F'">女</label> </td> <td>{{s.stuAge}}</td> </tr> </table> ------------------------------------------------------------------------------------------ stus:[ { stuNum:"10001", stuName:"张三", stuGender:"M", stuAge:20 }, { stuNum:"10002", stuName:"李四", stuGender:"F", stuAge:21 }, { stuNum:"10003", stuName:"王五", stuGender:"M", stuAge:22 } ]
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5.v-bind:绑定标签属性
<input type="text" value="str" />
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<input type="text" v-bind:value="str" />
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<table border="1" cellspacing="0" width="400"> <tr> <th>序号</th> <th>学号</th> <th>头像</th> <th>姓名</th> <th>性别</th> <th>年龄</th> </tr> <tr v-for="s,index in stus"> <td>{{index+1}}</td> <td>{{s.stuNum}}</td> <td> <img height="60" v-bind:src="s.stuImg" /> </td> <td>{{s.stuName}}</td> <td> <label v-if="s.stuGender == 'M'">男</label> <label v-if="s.stuGender == 'F'">女</label> </td> <td>{{s.stuAge}}</td> </tr> </table> --------------------------------------------------------------------------------- stus:[ { stuNum:"10001", stuName:"张三", stuGender:"M", stuAge:20, stuImg:"img/2.jpg" }, { stuNum:"10002", stuName:"李四", stuGender:"F", stuAge:21, stuImg:"img/3.jpg" }, { stuNum:"10003", stuName:"王五", stuGender:"M", stuAge:22, stuImg:"img/4.jpg" } ]
v-bind: 可以省略为: :
<table border="1" cellspacing="0" width="400"> <tr> <th>序号</th> <th>学号</th> <th>头像</th> <th>姓名</th> <th>性别</th> <th>年龄</th> </tr> <tr v-for="s,index in stus"> <td>{{index+1}}</td> <td>{{s.stuNum}}</td> <td> <img height="60" :src="s.stuImg" /> </td> <td>{{s.stuName}}</td> <td> <label v-if="s.stuGender == 'M'">男</label> <label v-if="s.stuGender == 'F'">女</label> </td> <td>{{s.stuAge}}</td> </tr> </table>
6.表单标签的双向绑定:v-model
(使用在表单输入标签中,只针对value使用(v-model:value),可以简写为v-model。)
<input type="text" v-model:value="str" />
<input type="text" v-model="str" /> <!--简写-->
--------------------------------------------------------------- data{ stu:{ stuImg:"img/1.jpeg" } }
分类:
千峰商城项目
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