Value modification problem in Input in antd

　　　　

<Input value={ this .state.valueName} /> // The value can be modified at will 
<Input value={unStateValue} onChange={ event =>this.inputOnChange.bind(this)(event)}/>//The value cannot be Modify 
inputOnChange(event){ 
　　//event.target is this node 
　　unStateValue=event.target.value;//You can 
}