When the credit card validation didn't succeed an error end event throws an exception.
当信用卡验证不成功，一个错误结束事件抛出一个异常。
An error start event can be used to catch a specific error thrown by an error end event.
错误开始事件可用来捕获由错误事件抛出的错误。
Other event handlers include connect, end, timeout, drain, error, and close.
其他的事件处理器包括connect、end、timeout、drain、error和close。
Other event handlers include connect, end, timeout, drain, error, and close.
其他的事件处理器包括connect、end、timeout、drain、error和close。
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