Vue.js实现备忘录功能

本文实例为大家分享了Vue.js实现备忘录的具体代码，供大家参考，具体内容如下

效果展示:

html代码:

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 备忘录{{now}}
 
 

 
 
 
  
 
 完成
 
 

 
 
 

  
  
  
写日记是一个好习惯
  
  删除
  
  
  修改
  
 
 
 
 
 
 
 

CSS代码:

*{
 margin: 0;
 padding:0;
}
header,#app,footer{
 margin:0 8px;
}
header h1{
 color: #FF4500;
 font-weight: normal;
 font-size: 24px;
 padding-top: 10px;
 padding-bottom: 4px;
 border-bottom: 1px solid #ccc;
 margin-bottom: 4px;
}
 
#app textarea{
 width: 100%;
 height: 200px;
 border: none;
 border-bottom: 1px solid #ccc;
 padding: 8px 4px;
}
button{
 padding: 4px;
 background-color: #fff;
 border: 1px solid #ccc;
 border-radius: 4px;
}



#app section{
 position: relative;
 
}
.finish{
 position: absolute;
 background-color: limegreen;
 bottom: 8px;
 right: 4px;
}
#app ul{
 margin-top: 8px;
}
#app li{
 border-bottom: 1px solid #CCCCCC;
 margin-bottom: 8px;
}
.left{
 float: left;
}
.right{
 float: right;
}

 
header span.right{
 font-size: 14px;
 padding-top:13px;
}
.btn_ground{
 height: 30px;
 margin-top: 4px;
}
.del{
 background-color: orangered;
 color: #FFFFFF;
}
.update{
 background-color: royalblue;
 color: #FFFFFF;
}
footer{
 color: #999;
 text-align: center;
 font-size: 12px;
}

js代码:

function getNowString(){
 var now=new Date()
 var arr=['日','一','二','三','四','五','六']
 
 return now.toLocaleDateString()
  +'星期'
 +arr[now.getDay()]
}
 
var App = new Vue({
 el:'#app',
 data:{
 now:getNowString(),
 noteBooks:[
 {
 time:'2019/6/17 星期一',
 txt:'今天天气不好'
 },{
 time:'2019/6/18 星期二',
 txt:'今天学习Adidas'
 }
 ],
 diary:'',
 index:'-1'
 },
 methods:{
 finished:function(){
 //!App.diary是考虑App.diary=null的情况
 if(!App.diary||0==App.diary.length)return
 
 if(-1==App.index){
 //存入noteBooks中
 //unshift插入到数组首位
 App.noteBooks.unshift({
  time:App.now,
  txt:App.diary
 })
 }else{
 //修改
 App.noteBooks[App.index]={
  time:App.now,
  txt:App.diary
 }
 App.index=-1
 }
 App.diary = ''
 App.now=getNowString()
 },
 del:function(i){
 // 删除 splice(起始下标,删除个数)
 App.noteBooks.splice(i,1)
 },
 upDate:function(i){
 var nb=App.noteBooks[i]
 App.diary=nb.txt
 App.now = nb.time
 //App.index 为-1表示新增,其他就是修改
 App.index=i
 }
 }
})