# 负载均衡组

负载均衡组从可用的子策略中随机选择一个策略来使用。

### 参数

#### `persistent`: 可选

当 `persistent=true` 时，对于相同的目标主机名将使用相同的策略。这可以避免由于出口 IP 不同而触发目标站点的风控。然而，当可用性发生变化时，可能会发生策略变更。


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