自定义Vue组件

自定义Vue组件的三步骤

1、创建组件

2、注册组件

3、使用组件

创建组件

    //创建组件
            var myclock = {
                data(){
                    return {
                        clock: new Date().toLocaleString(),
                        _timer:null
                    }
                },
                methods:{
                    updateTime(){
                        this.clock = new Data().toLocaleString();
                    }
                },
                created(){
                    this._timer = setInterval(this.update,1000); 
                },
                beforeDestroy(){
                    this._timer.cancel();
                },
                template:`<div>{{clock}}</div>`
            };

注册组件

    //注册组件,名为myclock
            Vue.component("myclock",myclock);
            var vm = new Vue({
                el: "#app"
            });

使用组件

        <div id="app">
            <h3>组件示例</h3>
            <div>
                <!-- 使用组件 -->
                <myclock></myclock>
            </div>
        </div> 

运行结果

 

一些简单例子代码

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
    </head>
    <body>
        <script src="js/incbutton.js"></script>
        <script src="js/vue.js"></script>
        <div id="app">
            <h3>组件示例</h3>
            <div>
                <!-- 使用组件 -->
                <incbutton></incbutton>
                <br />
                <myclick></myclick>
                <br/>
                <myclock></myclock>
            </div>
        </div>

        <script>
            //定义组件
            var mytemplate1 = {
                template: `<div>
                        <button @click='dianzan' v-bind:style="{color:colors}" >点赞</button>
                        <button @click='guanzhu' v-bind:style="{color:colors1}" >关注</button>
                        <myclock></myclock>
                           </div>`,
                data() {
                    return {
                        isNumber: 1,
                        isCount: 1,
                        colors:'',
                        colors1:''
                    }
                },
                methods: {
                    dianzan(){
                        this.isNumber = this.isNumber +1 ;
                        
                        if(this.isNumber % 2 == 0 ){
                            this.colors ="red";
                        }else{
                            this.colors ="black";
                        }
                        
                    },
                    guanzhu(){
                        this.isCount = this.isCount +1 ;
                        
                        if(this.isCount % 2 == 0 ){
                            this.colors1 ="red";
                        }else{
                            this.colors1 ="black";
                        }
                    }
                }
            };
            
            //注册组件
            var myclock = {
                data(){
                    return {
                        clock: new Date().toLocaleString(),
                        _timer:null
                    }
                },
                methods:{
                    updateTime(){
                        this.clock = new Data().toLocaleString();
                    }
                },
                created(){
                    this._timer = setInterval(this.update,1000); 
                },
                beforeDestroy(){
                    this._timer.cancel();
                },
                template:`<div>{{clock}}</div>`
            };
            
            
            //注册组件,名为myclock
            Vue.component("myclock",myclock);

            //注册组件,名为myclick
            Vue.component("myclick", mytemplate1)

            //注册组件,名为incbutton
            Vue.component("incbutton", myTemplate);
            var vm = new Vue({
                el: "#app"
            });
        </script>
    </body>
</html>

 

将组件封装成js文件 然后调用。incbutton.js
            //定义组件
            var myTemplate = {
                //  ` 模板字符串 ` es6,随便换行,缺点 --> 兼容性不太行 只能在es6环境中运行
                // ''
                // ""
                template:`
                <div>使用说明
                    <ul>
                        <li>点击一下,数字增加</li>
                        <li>如果大于0,鼠标移到按钮上去减1啦</li>
                    </ul>
                    <button @click='incr' @mouseover='decr' >你已经点击了{{count}}</button>
                </div>`,
                data() {
                    return {
                        count:0
                    }
                },
                methods:{
                    incr(){
                        this.count = this.count +1 ;
                    },
                    decr(){
                        this.count = this.count >0 ? this.count -1:0;
                    }
                }
            };

 

posted @ 2018-11-19 11:03  追梦滴小蜗牛  阅读(639)  评论(0编辑  收藏  举报