Ideal bank account rules

Every time I send money to a bank, I worry that my account is wrong and I will always check it over and over again.
Once I went to the postal service to save money to my friends and friends, I was about to check that the account was correct. The staff said no. If the account and account name do not match, the operation would fail, I think this is really a good feature.
In fact, I am mainly worried about the problem of more than 10 digits of data. In case of an error, isn't this account enough! When I went to the bank today, I asked the bank account of the lobby manager about the arrangement rules. She said: "Each bank is different. Some of our banks are row numbers. The same bank can see the account name, external Banks can only match ". For me, I mainly want to know whether the bank account generation is continuous. If one account is written incorrectly, the account is valid if it is not lucky.
I have always had an idea about the bank account. The ideal account rule should be: add multiple random numbers (such as four digits) in addition to the custom bank rules ), for example, if the number of accounts generated according to the rules is 00001, and the random number of accounts generated is 9997, your account is 000019997. the random number is equivalent to the password of an account. In this way, if an incorrect account is written when you fill in the account, the possibility of this wrong account is very small, and there is no danger to the funds, and it is a big deal to return.