vue-基础

渲染的范围

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<p>狂神说Java</p>

<!--view层 模板-->
<div id="app">   
    <span v-bind:title="message">鼠标悬停几秒钟查看此处动态绑定的提示信息！</span>
</div>
<p>狂神说Java</p>

<p>狂神说Java</p>
<div id="app1">
    <span v-bind:title="message1">hello</span>
</div>
<p>狂神说Java</p>
<div id="app2">
   {{message2}}
</div>

</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    var vm = new Vue({
        el: "#app",  //绑定元素element
        data: {
            message: "hello,vue"
        },
        el: "#app1",  //绑定元素element
        data: {
            message1: "hello"
        },
        el: "#app2",  //绑定元素element
        data: {
            message2: "hello123"
        }
    })
</script>
</html>


<!-- 1。导入js  2.绑定 3.取出数据 4.渲染 -->



<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>Title</title>
</head>
<body>
<p>狂神说Java</p>

<!--view层 模板-->
<div id="app">
   <h1 v-if="type==='A'">A</h1>
   <h1 v-else-if="type==='B'">B</h1>
   <h1 v-else>C</h1>
</div>
</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
   var vm = new Vue({
       el: "#app",
       data: {
           type: "A"
       }
   })
</script>
</html>

3-v-for

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<p>狂神说Java</p>

<!--view层 模板-->
<div id="app">
    <li v-for="item in items">
        姓名：{{item.name}}，年龄：{{item.age}}
    </li>
</div>
</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            items: [
                {name: "zhangsan", age: 12},
                {name: "lisi", age: 10},
                {name: "wangwu", age: 16}
            ]
        }
    })
</script>
</html>





<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<p>狂神说Java</p>

<!--view层 模板-->
<div id="app">
    <button v-on:click="sayDog">Click Me</button>
    <button v-on:click="sayHi">Click Me</button>
</div>
</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            message: "你点我干嘛？",
            dog:"别狗叫"
        },
        methods: {
            //方法必须绑定在Vue的Methods对象中，v-on:事件
            sayHi: (function (event) {
                alert(this.message)
            }),
            sayDog: (function (event) {
                alert(this.dog)
            }),
        }
    })
</script>
</html>

5-message


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<p>狂神说Java</p>

<!--view层 模板-->
<div id="app">
    <input type="text" v-model="message">{{message}}
</div>
</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            message: "你点我干嘛？"
        },

    })
</script>
</html>


<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<p>狂神说Java132</p>

<!--view层 模板-->
<div id="app">
    <input type="radio" name="sex" value="男" v-model="qinjiang">  男

    <input type="radio" name="sex" value="女" v-model="qinjiang">  女

    <h1>{{qinjiang}}</h1>
</div>
</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            qinjiang: ''
        },

    })
</script>
</html>

6-select

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<!--view层 模板-->
<div id="app">
    下拉框：
    <select v-model="selected">
        <option value="" disabled>-请选择-</option>
        <option>A</option>
        <option>B</option>
        <option>C</option>
    </select>
    <p>value:{{selected}}</p>
</div>
</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            selected: "A" //不填也行
        }
    })
</script>
</html>

7-v-for

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<!--view层 模板-->
<div id="app">
    <qinjiang v-for="item in items" v-bind:qin="item"></qinjiang>
</div>
</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    Vue.component("qinjiang",{
        props: ['qin'],
        template: '<li>{{qin}}</li>'
    })

    var vm = new Vue({
        el: "#app",
        data: {
            items: ['Java','Python','Php',"C++"]
        }
    })
</script>
</html>

7-zujian

<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<p>狂神说Java</p>

<!--view层 模板-->
<div id="app">   
 <ikun></ikun>
 <li>hello</li>
</div>

</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    Vue.component("ikun",{
        template:'<li>hello</li>'


    });
    var vm = new Vue({
        el: "#app"  //绑定元素element
    })
</script>
</html>


<!-- 1。导入js  2.绑定 3.取出数据 4.渲染 -->

8-v-bind

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--view层 模板-->
<div id="vue">
    <div>{{info.name}}</div>
    <a v-bind:href="info.url">点我进入</a>
</div>
</body>

<!--1.导入vue.js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<!--导入axios-->
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.19.2/axios.min.js"></script>
<script>

    var vm = new Vue({
        el: "#vue",
        data: {
            items: ['Java','Python','Php']
        },
        //data:vm的属性
        //data():vm方法
        data(){
            return{
                //请求的返回参数,必须和json字符串一样
               info:{
                   name: null,
                   age: null,
                   sex: null,
                   url: "./data.json",
                   address: {
                       street: null,
                       city: null,
                       country: null
                   }
               }
            }
        },
        //钩子函数，链式编程，ES6新特性
        mounted(){
            axios.get("./data.json").then(res => (this.info=res.data))
        }
    })
</script>
</html>

9-template-bind


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<!--view层 模板-->
<div id="app">
    <!-- v-bind:ikun="item"  的item是前面遍历出来的 -->
    <qinjiang v-for="item in items" v-bind:ikun="item"></qinjiang>  
</div>
</body>

<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    Vue.component("qinjiang",{
        props: ['ikun'],
        template: '<li>{{ikun}}</li>'
    })

    var vm = new Vue({
        el: "#app",
        data: {
            items: ['Java','Python','Php']
        }
    })
</script>
</html>

10-axios


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<!--view层 模板-->
<div id="app">
    <div>currentTime1: {{currentTime1()}}</div>
    <!-- currentTime1: function () { [native code] }--> -->
    <!-- <div>currentTime1: {{currentTime1}}</div>   -->
    <div>currentTime2: {{currentTime2}}</div>
</div>
</body>
<!-- 获取不到json -->
<!--导入js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            message: "hello,world!"
        },
        methods: {
            currentTime1: function () {
                return Date.now(); // 返回一个时间戳
            }
        },
        computed: {
            //计算属性：methods，computed 方法名不能重名，重名字后，只会调用methods的方法
            currentTime2: function () {
                this.message;
                // 返回一个时间戳
                return Date.now();
            }
        }
    })
</script>
</html>

12-compoent

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
</head>
<body>
<div id="app">
    <todo>
        <todo-title slot="todo-title" v-bind:name="title"></todo-title>
        <todo-items slot="todo-items" v-for="item in todoItems" v-bind:item="item"></todo-items>
    </todo>
</div>

<!--1.导入vue.js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    //slot 插槽 这个组件要定义在前面不然出不来数据
    Vue.component("todo", {
        template: '<div>\
                <slot name="todo-title"></slot>\
                <ul>\
                <slot name="todo-items"></slot>\
                </ul>\
                <div>'
    });
    Vue.component("todo-title", {
        //属性
        props: ['name'],
        template: '<div>{{name}}</div>'
    });
    Vue.component("todo-items", {
        props: ['item'],
        template: '<li>{{item}}</li>'
    });
    let vm = new Vue({
        el: "#app",
        data: {
            //标题
            title: "图书馆系列图书",
            //列表
            todoItems: ['三国演义', '红楼梦', '西游记', '水浒传']
        }
    });
</script>
</body>
</html>




{
  "name":"狂神说java",
  "url": "http://baidu.com",
  "page": "1",
  "isNonProfit":"true",
  "address": {
    "street": "含光门",
    "city":"陕西西安",
    "country": "中国"
  },
  "links": [
    {
      "name": "B站",
      "url": "https://www.bilibili.com/"
    },
    {
      "name": "4399",
      "url": "https://www.4399.com/"
    },
    {
      "name": "百度",
      "url": "https://www.baidu.com/"
    }
  ]
}
posted @ 2024-05-01 23:43  哈了个皮  阅读(35)  评论(0)    收藏  举报