public PackageScanner addPackage(String pkg) {
        Package aPackage = Package.getPackage(pkg);
        addPackage(aPackage);
        return this;
    }
public PackageScanner addPackage(String pkg) {
        Package aPackage = Package.getPackage(pkg);
        addPackage(aPackage);
        return this;
    }
public PackageScanner addPackage ( String pkg ) { Package aPackage = Package . getPackage ( pkg ) ; addPackage ( aPackage ) ; return this ; }
增加扫描的包

@param pkg
@return
增加扫描的包