github.com/szq-123/codingpractice@v0.0.0-20240430111904-2778dfaf7994/golang/coding/design_pattern (about) Abstract_Factory.go Adapter.go Bridge.go Builder_Factory.go Chain.go Command.go Factory.go Factory_Method.go Object_Pool.go Observer.go Singleton.go Visitor.go design_pattern_test.go