how to realized some clients persistence acording to source ip, but their src ip are not in one subnet?

If using separate virtual servers isn't an option, you could create a datagroup for each set of client IP addresses. You could then use an if/elseif/else to find which datagroup the client is a part of. You could then use 'persist uie' with an alias for the particular datagroup the client is a part of to use the existing persistence record or have a new record created automatically once a load balancing decision is made.

class group1 {
   host 10.1.1.1
   host 192.168.1.1
   host 172.16.1.1
}

class group1 {
   host 10.1.1.2
   host 192.168.1.2
   host 172.16.1.2
}

class group1 {
   host 10.1.1.3
   host 192.168.1.3
   host 172.16.1.3
}

when CLIENT_ACCEPTED {
    check to see if client IP is in one of the datagroups
   if {[matchclass [IP::client_addr] equals $::group1]}{
       client IP is in first datagroup, use existing persistence record or create a new one
      persist uie "group1"
   } elseif {[matchclass [IP::client_addr] equals $::group2]}{
    check to see if client IP is in the second datagroup
       client IP is in second datagroup, use existing persistence record or create a new one
      persist uie "group2"
   } elseif {[matchclass [IP::client_addr] equals $::group3]}{
    check to see if client IP is in the second datagroup
       client IP is in third datagroup, use existing persistence record or create a new one
      persist uie "group3"
   } else {
       client IP is not defined in any datagroup, so take some default action
       or perhaps just use source address persistence?
   }
}

If you have more than a few datagroups, you could replace the if/elseif/else with a loop to go through each datagroup by name.

Note that I didn't test this rule but hopefully it gives you some direction.

Aaron

[edited the rule description...]