powerdns按权重返回

语法:pickwrandom({{10,'ip'},{100,'ip'}}),10或100就是权重
例:pickwrandom({{10,'192.168.0.1'},{100,'192.168.0.2'}})
多组
例pickwrandom({{10,'192.168.0.1'},{100,'192.168.0.2'},{90,'192.168.0.20'}})

SQL:
A "(pickwrandom({{100,'192.168.0.1'},{99,'192.168.0.2'},{90,'192.168.0.20'}}))"