//计算时间
var sendTime = this.props.obj.send_time;

console.log(sendTime);

//当前时间
var nowTime = (new Date()).valueOf();

console.log(nowTime);

//差值
var date3 = nowTime - sendTime;

console.log(date3);

//天
var days=Math.floor(date3/(24*3600*1000))
//时
var leave1=date3%(24*3600*1000)
var hours=Math.floor(leave1/(3600*1000))
//分
var leave2=leave1%(3600*1000)
var minutes=Math.floor(leave2/(60*1000))

//秒
var leave3=leave2%(60*1000)
var seconds=Math.round(leave3/1000)

var disAndTimeText;

if(days>0){
    var myText = '600m  '+days+'天前'
   disAndTimeText = <Text style={styles.disAndTimeText}>{myText}</Text>
}

if(days==0&&hours>0){
    var myText = '600m  '+hours+'小时前'
   disAndTimeText = <Text style={styles.disAndTimeText}>{myText}</Text>
}

if(days==0&&hours==0&&minutes>0){
    var myText = '600m  '+minutes+'分钟前'
   disAndTimeText = <Text style={styles.disAndTimeText}>{myText}</Text>
}

if(days==0&&hours==0&&minutes==0&&seconds>0){
    var myText = '600m  刚刚'
   disAndTimeText = <Text style={styles.disAndTimeText}>{myText}</Text>
}