父
this.state={name:''}
handlechild(uname){
? ? this.setState({name:uname})
}
<Children cancal={uname=>this.handleChild(uname)}
子
componentDidMount(){
? ? this.props.cancal('子傳父')
}
父
this.state={name:''}
handlechild(uname){
? ? this.setState({name:uname})
}
<Children cancal={uname=>this.handleChild(uname)}
子
componentDidMount(){
? ? this.props.cancal('子傳父')
}