lovecoding
/
W250913


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <div class="box">{{str}}</div>
        <!-- v-model 指令：实现表单元素和数据的双向绑定 -->
        <!--v-model.trim 指令：自动去除首尾空格 -->
        <!-- <input type="text" v-model.trim="str"> -->
        <!-- v-model.number 指令：将输入值转换为数字类型 -->
        <!-- <input type="text" v-model.number="str"> -->
        <!-- v-model.lazy 指令：在输入框失去焦点时更新数据 -->
        
        <!-- input事件：当输入框的值发生变化时触发 -->
        <!-- <input @input="inputFun" type="text" v-model.lazy="str"> -->
        <!-- change事件：当输入框失去焦点时触发 -->
        <input @change="inputFun" type="text" v-model.lazy="str">
        

        <button @click="changeStr">提交</button>
    </div>
    <script src="./js/vue.js"></script>
    <script>
        let a = 10;
        new Vue({
            el: "#app",
            data: {
                str: "",
            },
            methods: {
                changeStr() {
                    // this.str = 100;
                    console.log(typeof this.str);
                    console.log(a);
                },
                inputFun() {
                    console.log("input事件触发");
                }
            }

        })
    </script>
</body>

</html>