connection.IsActive(){returnnil}varfd=conn.(Conn).Fd()// 存储新的连接connection.AddCloseCallback(func(connection Connection)error{s.connections.Delete(fd)returnnil})s.connections.Store(fd,connection)// trigger onConnect asynchronouslyconnection.onConnect()returnnil}...
正如官方文档描述的那样: A "defer" statement invokes a function whose execution is deferred to the moment the surrounding function returns, either because the surrounding function executed a return statement, reached the end of its function body, or because the corresponding goroutine is panicking.Def...
var _ Marshaler = (*RawMessage)(nil)var _ Unmarshaler = (*RawMessage)(nil)带上下文的代码如下:// RawMessage is a raw encoded JSON value.// It implements Marshaler and Unmarshaler and can// be used to delay JSON decoding or precompute a JSON encoding.type RawMessage []byte// MarshalJSON...
func (m RawMessage) MarshalJSON() ([]byte, error) { if m == nil { return []byte("null"), nil } return m, nil } // UnmarshalJSON sets *m to a copy of data. func (m *RawMessage) UnmarshalJSON(data []byte) error { if m == nil { return errors.New("json.RawMessage: Unmars...
Golang常用命令 go version 查看Golang版本号 go help 查看go命令帮助 go env 查看Golang环境变量配置,可以查看包括GOPATH,GOROOT等变量配置的配置. go run 编译并运行go程序 go build 编译go程序 go test 运行测试文件 go fmt 格式化代码 go clean 清理编译文件 ...
配置zorm.DataSourceConfig的 DriverName:dm ,DBType:dm 达梦数据库驱动:https://gitee.com/chunanyong/dm 达梦的text类型会映射为dm.DmClob,string不能接收,需要实现zorm.CustomDriverValueConver接口,自定义扩展处理 人大金仓(kingbase) 配置zorm.DataSourceConfig的 DriverName:kingbase ,DBType:kingbase ...
Go empty interfaces (interface{} / any) Some properties / objects in http.Response are defined as interface{} (or any). This can cause json.Unmarshal to fail (example: when the original type was big.Int with a big integer indeed - json.Unmarshal attempts to convert to float64 and fails...
= nil { fmt.Printf("error running: %s\n", err.Error()) panic(err) // proper handling here } // Here we'll see a timeout eror The program will be terminated with an error after five seconds, which means that your host application will continue to run rather than being blocked ...
任意类型的指针值都可以转换为unsafe.Pointer（A pointer value of any type can be converted to a ...
if err != nil { panic("cannot seed with cryptographic random number generator") } r := rand.New(rand.NewSource(int64(binary.LittleEndian.Uint64(b[:]))) return r } 注:还有两个符号可用于包名。.将导入包的所有导出标识符放到当前包命名空间中,使用时不需要加前缀。不鼓励这么做,因为这会让源...