将时间戳转换成时间yy-MM-dd HH:mm

- (NSString *)getDate:(NSString *)date{

    long long time=[date longLongValue]; //转成longlong类型

    NSDate *d = [[NSDate alloc]initWithTimeIntervalSince1970:time/1000.0];

    NSDateFormatter *df = [[NSDateFormatter alloc] init];//格式化

    [df setDateFormat:@"yy-MM-dd HH:mm"];

    [df setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"] ]; //地区

    NSString * timeStr =[df stringFromDate:d];

    return timeStr;

}