React-native 验证码倒计时

只留给特别笨的自己，也是特别笨的方法，省的以后还是不会，再慢慢改进吧╮(╯▽╰)╭

var codeTime =60;

constructor(props) {

super(props);

// 初始状态

this.state= {

timerCount:codeTime,

timerTitle:''

};

}

this.interval=setInterval(() =>{

vartimer=this.state.timerCount-1

if(timer===0){

this.interval&&clearInterval(this.interval);

this.setState({

timerCount:codeTime,

timerTitle:'重新获取'

})

}else{

this.setState({

timerCount:timer,

})

}

},1000)