Quote from: DannyHamilton on November 04, 2016, 11:36:56 AM

Quote from: betwithbitcoin8668 on November 04, 2016, 05:19:55 AM

how could this trans happen with 0 trans but only generate one

Because that is how bitcoin is designed to work.

Quote from: betwithbitcoin8668 on November 04, 2016, 05:19:55 AM

is there any method to avoid it ?

As a solo miner or a mining pool operator, you can choose which transactions you want to confirm (if any). As a non-mining user? Nope. Nothing you can do about it.

Quote from: betwithbitcoin8668 on November 04, 2016, 05:50:52 AM

There should be some rules , for example , at least xxx trans or xx% of all unconfirmed trans

There is.

The rule is:
"At least 1 transaction"

Specifically, the block MUST include a generation transaction.

Quote from: betwithbitcoin8668 on November 04, 2016, 08:25:55 AM

if I Am a minner can I set up the trans number while I am minning .or it is random?

If you are solo-mining, or you are operating a mining pool, then yes. If you are just a miner mining in a pool that someone else is operating, then typically no.

almost clear.

so if I am a minner solo-mining. and I can set up the block, I will mined, by all 0 trans( just the generation transaction)

right?

if this happened the number of unconfirmed trans will be stay there or just become more.

it is bad.