连接器的至少一端应当连接到原型为的端口。
At least one end of the connector shall connect to a port stereotyped as.
config - substitution . properties：用于快速更改参数，例如连接器的端口号。
Config-substitution.properties: for quick change parameters, such as port number for connectors.
config - substitution . properties：用于快速更改参数，例如连接器的端口号。
Config-substitution.properties: for quick change parameters, such as port number for connectors.
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