依赖的写法

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.sn</groupId>
  <artifactId>HelloFriend</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <dependencies>
        <dependency>
            <groupId>com.sn</groupId>
            <artifactId>Hello</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
  </dependencies>

</project>