增加错误判断
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@ -75,6 +75,9 @@ func MqttClientSubscribe(session *Session, topic string, qos byte) {
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}
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func MqttClientUnsubscribe(session *Session, topic string) {
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if session == nil {
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return
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}
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client := *session.Client
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client.Unsubscribe(topic)
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}
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