时间戳标准日期之间的转换

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代码实现:

//时间戳转标准时间
- (void)Click1:(UIButton *)btn
{
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    
    [formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];//设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制

    NSString *str = [NSString stringWithFormat:@"%@",
                     [formatter stringFromDate:[NSDate dateWithTimeIntervalSince1970:[_timeTextFiled1.text integerValue]]]];
    _standardLable1.text = str;
    [_timeTextFiled1 resignFirstResponder];
}

//标准时间转时间戳
- (void)Click2:(UIButton *)btn
{
    NSString *timeStr = _timeTextFiled2.text;
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"YYYYMMddHHmmss"]; // 设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制
    NSDate* date1 = [formatter dateFromString:timeStr]; //将字符串按formatter转成nsdate
    NSString *timeSp = [NSString stringWithFormat:@"%ld", (long)[date1 timeIntervalSince1970]];
    _standardLable2.text = timeSp;
    [_timeTextFiled2 resignFirstResponder];
}

时间戳标准日期之间的转换

原文：http://blog.csdn.net/mhtios/article/details/40535749