If the customer number is not null, that is, the customer is already known, the left hand path is followed (2), and the customer data is retrieved from the customer registration service (3).
如果客户编号不为空，即客户是已知客户，则遵循左侧的路径(2)，并从客户注册服务中检索客户数据(3)。
Mirrorlogpath (default: NULL) - This configuration parameter allows logs protection by keeping the same copy in the path specified.
mirrorlogpath(默认值是NULL)——这个配置参数允许通过在指定的路径中保存相同的副本来保护日志。
overflowlogpath (default: NULL) - Indicates the log path to use during rollforward recovery.
overflowlogpath（默认值是NULL）——表示在前滚恢复期间使用的日志路径。
Failarchpath (default: NULL) - path to be used when the actual archive path is not available.
failarchpath(默认值是NULL)——当实际存档路径不可用时使用的路径。
For items that have two paths to send, there is a null byte after the first path, and it is followed by the second path, with the pathlen field of the message being set to the total length.
对于有两个路径需要发送的项，那么在第一个路径之后有一个null字节，其后紧跟第二个路径，并且消息的pathlen字段被设置为总长度。
If the parent returns null (or throws a ClassNotFoundException), then the class loader searches its own path for the source of the class.
如果父类返回null(或抛出ClassNotFoundException)，那么类装入器会在自己的路径中寻找类的源。
It looks for cases where a code path will or could cause a null pointer exception, and it also looks for cases in which there is a redundant comparison to null.
它查找代码路径将会或者可能造成null指针异常的情况，它还查找对null的冗余比较的情况。
Path location — Returns an element or null if it doesn't exist in a non-modifiable tree.
路径位置——返回一个元素，如果不可修改的树中不存在该元素，则返回null。
The path must end with a null character.
该路经必须以零结尾。
Certain paths through the code do fine, but one particular path causes the Null Reference Exception.
某些特定的路径通过代码做的很好，但一个特定的路径引起的空引用异常。
Handle to the module whose path is being requested. If this parameter is NULL, GetModuleFileName retrieves the path for the current module.
指的就是你要请求处理的路径，如果为空的话，就是该处理模块的当前路径！
Handle to the module whose path is being requested. If this parameter is NULL, GetModuleFileName retrieves the path for the current module.
指的就是你要请求处理的路径，如果为空的话，就是该处理模块的当前路径！
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