vue-基礎

哈了个皮發表於2024-05-01
Vue

渲染的範圍

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

<!--view層 模板-->
<div id="app">   
    <span v-bind:title="message">滑鼠懸停幾秒鐘檢視此處動態繫結的提示資訊！</span>
</div>
<p>狂神說Java</p>

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

</body>

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


<!-- 1。匯入js  2.繫結 3.取出資料 4.渲染 -->



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

<!--view層 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>

<!--匯入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>狂神說Java</p>

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

<!--匯入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>狂神說Java</p>

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

<!--匯入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: "你點我幹嘛？",
            dog:"別狗叫"
        },
        methods: {
            //方法必須繫結在Vue的Methods物件中，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>狂神說Java</p>

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

<!--匯入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: "你點我幹嘛？"
        },

    })
</script>
</html>


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

<!--view層 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>

<!--匯入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層 模板-->
<div id="app">
    下拉框：
    <select v-model="selected">
        <option value="" disabled>-請選擇-</option>
        <option>A</option>
        <option>B</option>
        <option>C</option>
    </select>
    <p>value:{{selected}}</p>
</div>
</body>

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

<!--匯入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>狂神說Java</p>

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

</body>

<!--匯入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"  //繫結元素element
    })
</script>
</html>


<!-- 1。匯入js  2.繫結 3.取出資料 4.渲染 -->

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