代码如下: package notifier import ( "fmt" "strconv" "sync" "strings" "net" "net/http" "time" "container/list" ) type ClientInfo struct { pncode string frpcState string } var mtx sync.Mutex var infoList = list.New() func InfoListPushBack(pncode string, frpcState string) { info :...
import "包2" 2) 多行导入 当多行导入时,包名在 import 中的顺序不影响导入效果,格式如下: import( "包1" "包2" … ) 参考代码 8-1 的例子来理解 import 的机制。 代码8-1 的目录层次如下: . └── src └── chapter08 └── importadd ├── main.go └── mylib └── add.go ...
在go语言中，如果导入的包没有被使用就会报这个错误，你可以注释掉导入的包
import "time" func main() { for i := 0; i < 5; i++ { go func() { println(i) }() } time.Sleep(time.Second) } 这段代码很简单,期望的结果就是会显示5个数字,范围是0-4,顺序不固定。 但是在go1.22版本之前,你这样执行的话,极大概率显示的是5个5。 注意最后加上的time.Sleep函数,很多...
package mainimport"time"func main(){ connectTimeout := 10time.Sleep(time.Second*connectTimeout) } 这样使用会报错 intandtime.Duration are different types. You need to convert the int to a time.Duration 解决办法 connectTimeout := 10time.Sleep(time.Duration(connectTimeout)* time.Second) ...
Time `gorm:"column:online_at;type:datetime;comment:上线时间" json:"online_at"` } // TableName - func (m *Tag) TableName() string { return "tag" } controller/tag.go 代码语言:go 复制 package controller import ( "fmt" "test/utils/sqlmock/model" "time" "gorm.io/gorm" ) type Tag...
import ( "database/sql/driver" "time" ) const TimeFormat = "2006-01-02 15:04:05" type LocalTime time.Time func (t *LocalTime) UnmarshalJSON(data []byte) (err error) { if len(data) == 2 { *t = LocalTime(time.Time{}) return } now, err := time.Parse(`"`+TimeFormat+`"...
package main import ( "fmt" "time" ) //define a channel var chs chan int func Get() { for { select { case v := <- chs: fmt.Printf("print:%v\n", v) case <- time.After(3 * time.Minute): fmt.Printf("time.After:%v", time.Now().Unix()) } } } func Put() { var ...
import"github.com/spf13/cobra" Usage cobra-cliis a command line program to generate cobra applications and command files. It will bootstrap your application scaffolding to rapidly develop a Cobra-based application. It is the easiest way to incorporate Cobra into your application. ...