```java
public class CulContext {

public String member1;
public String member2;
public String name;
public String org;
public String updateTime;

public boolean canChangePartyPositions() {
if (changeCondition()) {
return true;
}
return !Objects.equals(member1, member2);
}

private boolean changeCondition() {
return member2 == null && member1 != null;
}
}
```
===
```java
public class BizService {

public boolean changePositions(CulContext culContext) {
if (culContext.canChangePartyPositions()) {
return changePartyPosition(culContext);
}
return false;
}

private boolean changePartyPosition(CulContext culContext) {
//提前返回降低代码复杂度
//biz
return false;
}
}
```