vue12 循環添加重復數據
阿新 • • 發佈：2017-06-10
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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>智能社——http://www.zhinengshe.com</title> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> <meta name="apple-mobile-web-app-capable"content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <style> </style> <script src="vue.js"></script> <script> </script> </head> <body> <div id="box"> <input type="button"value="添加" @click="add"> <ul> <li v-for="val in arr"> {{val}} </li> </ul> </div> <script> var vm=new Vue({ data:{ arr:[‘apple‘,‘pear‘,‘orange‘] }, methods:{ add:function(){//只能添加一次，有重復數據， this.arr.push(‘tomato‘); } } }).$mount(‘#box‘); </script> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>智能社——http://www.zhinengshe.com</title> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <style> </style> <script src="vue.js"></script> <script> </script> </head> <body> <div id="box"> <input type="button" value="添加" @click="add"> <ul> <li v-for="val in arr" track-by="$index"> <!-- 可以添加重復數據--> {{val}} </li> </ul> </div> <script> var vm=new Vue({ data:{ arr:[‘apple‘,‘pear‘,‘orange‘] }, methods:{ add:function(){ this.arr.push(‘tomato‘); } } }).$mount(‘#box‘); </script> </body> </html>
vue12 循環添加重復數據