微信小程序动态添加和删除组件的现实

<block wx:for="{{数组}}">
 组件
</block>

<view>
  <button bindtap='onTapAdd'>添加input组件</button>
  <button bindtap='onTapDel'>删除Input组件</button>
  <block wx:for="{{obj}}" wx:key>
    <input value="{{item}}"></input>
  </block>
</view>

data: {
   obj:[]
 },
 /增加组件 /
 onTapAdd:function(e){
  var temp=this.data.obj;
  temp.push(this.data.obj.length);
  this.setData({
   obj:temp
  })
 },
 / 删除一个组件，也可以修改删除指定组件/
 onTapDel:function(e){
  var temp = this.data.obj;
  temp.pop(this.data.obj.length);
  this.setData({
   obj: temp
  })
 },

 //index.html
 <button bindtap='clickMe'> 添加</button>  
 <input type='input' value='{{value}}' placeholder='请输入' bindblur='getValue'></input>
 <view wx:for="{{info}}" wx:key="key">
  <view >  {{info[index].title}} </view>
 </view>

//index.js
 data: {  
 	 info:[],  
 	 value:'',
  },
 clickMe:function(){ 
	var info = this.data.info; 
	var title = this.data.title;  
	var info2 = new Object();  
	info2.title = title; 
	info.push(info2);  
	console.log(info)  
	this.setData({  
		info:info 
		}) 
	},
getValue:function(e){ 
	this.setData({  
		title:e.detail.value,  
		
		})  
	},