【vue.js】備忘錄demo
阿新 • • 發佈:2019-02-10
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <script src="vue.js"></script> <style> /*當任務完成時,勾選多選框後的樣式*/ .finish{ text-decoration:line-through; color:#aaabac; } </style> </head> <body> <div id="app"> <!--輸入框:v-model用於將輸入內容跟content進行資料繫結,keydown.enter用於監聽鍵盤迴車事件--> <input type="text" v-model="task.content" placeholder="edit" @keydown.enter="addTask"> <!--任務列表顯示區域--> <div id="list"> <!--用v-if判斷當前是否有任務,任務陣列list長度為0時顯示暫無任務--> <p v-if="list.length===0" style="position:relative;left:20px;top:20px;color:#AAAAAA">暫無任務</p> <!--用v-for遍歷輸出任務陣列中的任務--> <div id="unit" v-for="(item,index) in list" > <!--多選框的click事件監聽狀態(是否勾選)的改變--> <input type="checkbox" @click="changeState(index)" > <!--動態新增樣式class='finish'--> <span :class="{'finish':item.finished}">{{ index+1 }}.{{ item.content }}</span> <!--刪除按鈕:點選按鈕執行deleteTak函式,需要注意要傳入索引值刪除指定任務--> <button style="background:red;color:white;" @click="deleteTask(index)">delete</button> </div> </div> </div> </body> <script> let vm=new Vue({ el:"#app", data:{ task:{ content:'', finished:false, // deleted:false, }, list:[], addTask(){ this.list.push(this.task); this.task={ content:'', finished:false, // deleted:false, } }, changeState(index){ let nowState=this.list[index].finished; this.list[index].finished=!this.list[index].finished; }, deleteTask(index){ this.list.splice(index,1); } }, }); </script> </html>