React 父组件如何获取子组件的ref值？

Question

React 父组件如何获取子组件的ref值？父组件：const registerStepTwo = React.createClass({    handleChange:function(){         var confirmPassText =  this.refs.confirmPassText.value;        console.log(confirmPassText)//子组件ref的值取不到     },     render(){        return(            <div>                 {navBar}                <div className="list-ul">                     <ul>                         <ConfirmPass  ref="confirmPassText" onChange={this.props.handleChange}  />                     </ul>                 </div>             </div>         )     } })子组件：   const ConfirmPass = React.createClass({         render(){                    return(                <div>                     <li>                         <div className="registerLeft">                         <input ref="confirmPassText" type="password"  onChange={this.handleChange}                            className="loginText" />                         </div>                     </li>                 </div>             )         }     })

Answer 1

this.props.handleChange改成this.handleChange。

handleChange是你这个组件的函数，不是传进来的属性。