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// Copyright 2011 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package crc implements the checksum algorithm used throughout leveldb. // // The algorithm is CRC-32 with Castagnoli's polynomial, followed by a bit ...
Go
// Copyright 2012 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package leveldb import ( "encoding/binary" ) const batchHeaderLen = 12 // Batch is a sequence of Sets and/or Deletes that are applied atomically. ty...
Go
// Copyright 2012 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package leveldb import ( "bufio" "bytes" "encoding/binary" "errors" "fmt" "io" "sort" "code.google.com/p/leveldb-go/leveldb/db" ) // TODO: de...
Go
// Copyright 2011 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. /* Package table implements readers and writers of leveldb tables. Tables are either opened for reading or created for writing but not both. A reader ...
Go
// Copyright 2011 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package table import ( "bufio" "bytes" "encoding/binary" "errors" "fmt" "io" "code.google.com/p/leveldb-go/leveldb/crc" "code.google.com/p/lev...
Go
// Copyright 2011 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package table import ( "bytes" "encoding/binary" "errors" "fmt" "io" "sort" "code.google.com/p/leveldb-go/leveldb/crc" "code.google.com/p/leve...
Go
// Copyright 2012 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // +build !linux,!amd64 !darwin,!amd64 package db import ( "fmt" "io" "runtime" ) func (defFS) Lock(name string) (io.Closer, error) { return nil,...
Go
// Copyright 2012 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package db import ( "io" "os" "syscall" "unsafe" ) // lockCloser hides all of an os.File's methods, except for Close. type lockCloser struct { f ...
Go
// Copyright 2011 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package db defines the interfaces for a key/value store. // // A DB's basic operations (Get, Set, Delete) should be self-explanatory. Get // and Dele...
Go
// Copyright 2012 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package db import ( "io" "os" "syscall" "unsafe" ) // lockCloser hides all of an os.File's methods, except for Close. type lockCloser struct { f ...
Go
// Copyright 2011 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package db // Compression is the per-block compression algorithm to use. type Compression int const ( DefaultCompression Compression = iota NoCompre...
Go
// Copyright 2012 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package db import ( "io" "os" ) // File is a readable, writable sequence of bytes. // // Typically, it will be an *os.File, but test code may choose...
Go
// Copyright 2011 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package db import ( "bytes" ) // Comparer defines a total ordering over the space of []byte keys: a 'less // than' relationship. type Comparer interf...
Go
// Copyright 2011 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package record reads and writes sequences of records. Each record is a stream // of bytes that completes before the next record starts. // // When re...
Go
// Copyright 2012 The LevelDB-Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package leveldb provides an ordered key/value store. // // BUG: This package is incomplete. package leveldb import ( "bytes" "fmt" "io" "path/fi...
Go
// Package moderator provides access to the Moderator API. // // See http://code.google.com/apis/moderator/v1/using_rest.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/moderator/v1" // ... // moderatorService, err := moderator.New(oauthHttpClient) package moderator import ( "byte...
Go
// Package shopping provides access to the Search API for Shopping. // // See http://code.google.com/apis/shopping/search/v1/getting_started.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/shopping/v1" // ... // shoppingService, err := shopping.New(oauthHttpClient) package shopping ...
Go
// Package buzz provides access to the Buzz API. // // See http://code.google.com/apis/buzz/v1/using_rest.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/buzz/v1" // ... // buzzService, err := buzz.New(oauthHttpClient) package buzz import ( "bytes" "fmt" "http" "io" "json" "o...
Go
// Package siteverification provides access to the Google Site Verification API. // // See http://code.google.com/apis/siteverification/ // // Usage example: // // import "google-api-go-client.googlecode.com/hg/siteverification/v1" // ... // siteverificationService, err := siteverification.New(oauthHttpClient) pa...
Go
// Package discovery provides access to the APIs Discovery Service. // // See http://code.google.com/apis/discovery // // Usage example: // // import "google-api-go-client.googlecode.com/hg/discovery/v1" // ... // discoveryService, err := discovery.New(oauthHttpClient) package discovery import ( "bytes" "fmt" ...
Go
// Package analytics provides access to the Google Analytics API. // // See http://code.google.com/apis/analytics // // Usage example: // // import "google-api-go-client.googlecode.com/hg/analytics/v3" // ... // analyticsService, err := analytics.New(oauthHttpClient) package analytics import ( "bytes" "fmt" "...
Go
// Package analytics provides access to the Google Analytics API. // // See http://code.google.com/apis/analytics // // Usage example: // // import "google-api-go-client.googlecode.com/hg/analytics/v2.4" // ... // analyticsService, err := analytics.New(oauthHttpClient) package analytics import ( "bytes" "fmt" ...
Go
// Package translate provides access to the Translate API. // // See http://code.google.com/apis/language/translate/v2/using_rest.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/translate/v2" // ... // translateService, err := translate.New(oauthHttpClient) package translate import...
Go
// Package latitude provides access to the Google Latitude API. // // See http://code.google.com/apis/latitude/v1/using_rest.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/latitude/v1" // ... // latitudeService, err := latitude.New(oauthHttpClient) package latitude import ( "byte...
Go
// Package audit provides access to the Enterprise Audit API. // // See http://code.google.com/googleapps/domain/audit_admin/v1/getting_started.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/audit/v1" // ... // auditService, err := audit.New(oauthHttpClient) package audit import (...
Go
// Package tasks provides access to the Tasks API. // // See http://code.google.com/apis/tasks/v1/using.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/tasks/v1" // ... // tasksService, err := tasks.New(oauthHttpClient) package tasks import ( "bytes" "fmt" "http" "io" "json" ...
Go
// Copyright 2011 Google Inc. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "bytes" "exec" "flag" "fmt" "go/token" "go/parser" "go/printer" "http" "io/ioutil" "json" "os" "path/filepath" "log" "strings" ...
Go
// Package taskqueue provides access to the TaskQueue API. // // See http://code.google.com/appengine/docs/python/taskqueue/rest.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/taskqueue/v1beta1" // ... // taskqueueService, err := taskqueue.New(oauthHttpClient) package taskqueue im...
Go
// Package blogger provides access to the Blogger API. // // See https://code.google.com/apis/blogger/docs/2.0/json/getting_started.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/blogger/v2" // ... // bloggerService, err := blogger.New(oauthHttpClient) package blogger import ( "b...
Go
// Package urlshortener provides access to the URL Shortener API. // // See http://code.google.com/apis/urlshortener/v1/getting_started.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/urlshortener/v1" // ... // urlshortenerService, err := urlshortener.New(oauthHttpClient) package ur...
Go
// Package pagespeedonline provides access to the Page Speed Online API. // // See https://code.google.com/apis/pagespeedonline/v1/getting_started.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/pagespeedonline/v1" // ... // pagespeedonlineService, err := pagespeedonline.New(oauthHt...
Go
// Package books provides access to the Books API. // // See https://code.google.com/apis/books/docs/v1/getting_started.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/books/v1" // ... // booksService, err := books.New(oauthHttpClient) package books import ( "bytes" "fmt" "http"...
Go
// Copyright 2011 Google Inc. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package googleapi contains the common code shared by all Google API // libraries. package googleapi import ( "bytes" "fmt" "http" "io" "io/ioutil" "json" ...
Go
// Package prediction provides access to the Prediction API. // // See http://code.google.com/apis/predict/docs/developer-guide.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/prediction/v1.3" // ... // predictionService, err := prediction.New(oauthHttpClient) package prediction im...
Go
// Package prediction provides access to the Prediction API. // // See http://code.google.com/apis/predict/docs/developer-guide.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/prediction/v1.2" // ... // predictionService, err := prediction.New(oauthHttpClient) package prediction im...
Go
// Package orkut provides access to the Orkut API. // // See http://code.google.com/apis/orkut/v2/ // // Usage example: // // import "google-api-go-client.googlecode.com/hg/orkut/v2" // ... // orkutService, err := orkut.New(oauthHttpClient) package orkut import ( "bytes" "fmt" "http" "io" "json" "os" "str...
Go
package main import ( "http" "log" orkut "google-api-go-client.googlecode.com/hg/orkut/v2" ) func init() { registerDemo("orkut", orkut.OrkutScope, orkutMain) } func orkutMain(client *http.Client, argv []string) { orkutapi, _ := orkut.New(client) myBadges, err := orkutapi.Badges.List("me").Do() if err != nil ...
Go
package main import ( "fmt" "http" "os" "log" "strings" urlshortener "google-api-go-client.googlecode.com/hg/urlshortener/v1" ) func init() { registerDemo("urlshortener", urlshortener.UrlshortenerScope, urlShortenerMain) } func urlShortenerMain(client *http.Client, argv []string) { if len(argv) != 1 { fmt...
Go
// Copyright 2011 Google Inc. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "exec" "flag" "fmt" "gob" "http" "http/httptest" "io/ioutil" "os" "path/filepath" "log" "runtime" "strings" "time" "url" "goa...
Go
package main import ( "bytes" "fmt" "http" "io" "io/ioutil" "os" ) type logTransport struct { rt http.RoundTripper } func (t *logTransport) RoundTrip(req *http.Request) (*http.Response, os.Error) { var buf bytes.Buffer os.Stdout.Write([]byte("\n[request]\n")) if req.Body != nil { req.Body = ioutil.NopCl...
Go
package main import ( "http" "log" tasks "google-api-go-client.googlecode.com/hg/tasks/v1" ) func init() { registerDemo("tasks", tasks.TasksScope, tasksMain) } func tasksMain(client *http.Client, argv []string) { taskapi, _ := tasks.New(client) task, err := taskapi.Tasks.Insert("@default", &tasks.Task{ Titl...
Go
package main import ( "flag" "http" "os" "log" buzz "google-api-go-client.googlecode.com/hg/buzz/v1" ) func init() { registerDemo("buzz", buzz.BuzzScope, buzzMain) } func buzzMain(client *http.Client, argv []string) { fs := flag.NewFlagSet("buzz", flag.ExitOnError) includeMedia := fs.Bool("media", false, "I...
Go
// Package customsearch provides access to the CustomSearch API. // // See http://code.google.com/apis/customsearch/v1/using_rest.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/customsearch/v1" // ... // customsearchService, err := customsearch.New(oauthHttpClient) package customse...
Go
// Package diacritize provides access to the Diacritize API. // // See http://code.google.com/apis/language/diacritize/v1/using_rest.html // // Usage example: // // import "google-api-go-client.googlecode.com/hg/diacritize/v1" // ... // diacritizeService, err := diacritize.New(oauthHttpClient) package diacritize ...
Go
// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Hello is a trivial example of a main package. package main import ( "fmt" "code.google.com/p/go.example/newmath" ) func main() { fmt.Printf("Hello, wo...
Go
// Copyright 2011 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Package newmath is a trivial example package. package newmath // Sqrt returns an approximation to the square root of x. func Sqrt(x float64) float64 { // ...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "fmt" "math" ) type ErrNegativeSqrt float64 func (e ErrNegativeSqrt) Error() string { return fmt.Sprintf("Sqrt: negative number %g"...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import "fmt" // fibonacci is a function that returns // a function that returns an int. func fibonacci() func() int { f, g := 0, 1 return func...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "fmt" "tour/tree" ) func walkImpl(t *tree.Tree, ch chan int) { if t.Left != nil { walkImpl(t.Left, ch) } ch <- t.Value if t.Rig...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "strings" "tour/wc" ) func WordCount(s string) map[string]int { m := make(map[string]int) for _, f := range strings.Fields(s) { m...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import "tour/pic" func Pic(dx, dy int) [][]uint8 { p := make([][]uint8, dy) for i := range p { p[i] = make([]uint8, dx) } for y, row := r...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "io" "os" "strings" ) func rot13(b byte) byte { var a, z byte switch { case 'a' <= b && b <= 'z': a, z = 'a', 'z' case 'A' <= ...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "fmt" "math/cmplx" ) const delta = 1e-10 func Cbrt(x complex128) complex128 { z := x for { n := z - (z*z*z-x)/(3*z*z) if cmplx...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "errors" "fmt" "sync" ) type Fetcher interface { // Fetch returns the body of URL and // a slice of URLs found on that page. Fetc...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "image" "image/color" "tour/pic" ) type Image struct { Height, Width int } func (m Image) ColorModel() color.Model { return color...
Go
// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "fmt" "math" ) const delta = 1e-10 func Sqrt(x float64) float64 { z := x for { n := z - (z*z-x)/(2*z) if math.Abs(n-z) < delta...
Go
package main import "fmt" func add(x, y int) int { return x + y } func main() { fmt.Println(add(42, 13)) }
Go
package main import ( "fmt" "math" ) type Vertex struct { X, Y float64 } func (v *Vertex) Scale(f float64) { v.X = v.X * f v.Y = v.Y * f } func (v *Vertex) Abs() float64 { return math.Sqrt(v.X*v.X + v.Y*v.Y) } func main() { v := &Vertex{3, 4} v.Scale(5) fmt.Println(v, v.Abs()) }
Go
package main import "fmt" func split(sum int) (x, y int) { x = sum * 4 / 9 y = sum - x return } func main() { fmt.Println(split(17)) }
Go
package main import ( "fmt" "math" ) func pow(x, n, lim float64) float64 { if v := math.Pow(x, n); v < lim { return v } return lim } func main() { fmt.Println( pow(3, 2, 10), pow(3, 3, 20), ) }
Go
package main import ( "io" "os" "strings" ) type rot13Reader struct { r io.Reader } func main() { s := strings.NewReader( "Lbh penpxrq gur pbqr!") r := rot13Reader{s} io.Copy(os.Stdout, &r) }
Go
package main import ( "fmt" "time" ) type MyError struct { When time.Time What string } func (e *MyError) Error() string { return fmt.Sprintf("at %v, %s", e.When, e.What) } func run() error { return &MyError{ time.Now(), "it didn't work", } } func main() { if err := run(); err != nil { fmt.Println(...
Go
package main import ( "fmt" "math" ) func sqrt(x float64) string { if x < 0 { return sqrt(-x) + "i" } return fmt.Sprint(math.Sqrt(x)) } func main() { fmt.Println(sqrt(2), sqrt(-4)) }
Go
package main import ( "fmt" "math" ) func main() { fmt.Println(math.pi) }
Go
package main import ( "fmt" "time" ) func say(s string) { for i := 0; i < 5; i++ { time.Sleep(100 * time.Millisecond) fmt.Println(s) } } func main() { go say("world") say("hello") }
Go
package main import ( "fmt" ) func Sqrt(f float64) (float64, error) { return 0, nil } func main() { fmt.Println(Sqrt(2)) fmt.Println(Sqrt(-2)) }
Go
package main import ( "fmt" "math" ) func main() { hypot := func(x, y float64) float64 { return math.Sqrt(x*x + y*y) } fmt.Println(hypot(3, 4)) }
Go
package main import ( "code.google.com/p/go-tour/wc" ) func WordCount(s string) map[string]int { return map[string]int{"x": 1} } func main() { wc.Test(WordCount) }
Go
package main import "fmt" func swap(x, y string) (string, string) { return y, x } func main() { a, b := swap("hello", "world") fmt.Println(a, b) }
Go
package main func main() { for { } }
Go
package main import "fmt" type Vertex struct { X, Y int } var ( p = Vertex{1, 2} // has type Vertex q = &Vertex{1, 2} // has type *Vertex r = Vertex{X: 1} // Y:0 is implicit s = Vertex{} // X:0 and Y:0 ) func main() { fmt.Println(p, q, r, s) }
Go
package main import ( "fmt" "os" ) type Reader interface { Read(b []byte) (n int, err error) } type Writer interface { Write(b []byte) (n int, err error) } type ReadWriter interface { Reader Writer } func main() { var w Writer // os.Stdout implements Writer w = os.Stdout fmt.Fprintf(w, "hello, writer\n...
Go
package main import ( "fmt" "time" ) func main() { tick := time.Tick(1e8) boom := time.After(5e8) for { select { case <-tick: fmt.Println("tick.") case <-boom: fmt.Println("BOOM!") return default: fmt.Println(" .") time.Sleep(5e7) } } }
Go
package main import "fmt" func main() { c := make(chan int, 2) c <- 1 c <- 2 fmt.Println(<-c) fmt.Println(<-c) }
Go
package main import ( "fmt" "math" ) type MyFloat float64 func (f MyFloat) Abs() float64 { if f < 0 { return float64(-f) } return float64(f) } func main() { f := MyFloat(-math.Sqrt2) fmt.Println(f.Abs()) }
Go
package main import "fmt" type Vertex struct { X int Y int } func main() { fmt.Println(Vertex{1, 2}) }
Go
package main import "fmt" type Vertex struct { X, Y int } func main() { v := new(Vertex) fmt.Println(v) v.X, v.Y = 11, 9 fmt.Println(v) }
Go
package main import "fmt" func main() { sum := 1 for ; sum < 1000; { sum += sum } fmt.Println(sum) }
Go
package main import "fmt" type Vertex struct { Lat, Long float64 } var m = map[string]Vertex{ "Bell Labs": {40.68433, -74.39967}, "Google": {37.42202, -122.08408}, } func main() { fmt.Println(m) }
Go
package main import "fmt" func main() { sum := 0 for i := 0; i < 10; i++ { sum += i } fmt.Println(sum) }
Go
package main import "fmt" var x, y, z int = 1, 2, 3 var c, python, java = true, false, "no!" func main() { fmt.Println(x, y, z, c, python, java) }
Go
package main import ( "fmt" "time" ) func main() { fmt.Println("When's Saturday?") today := time.Now().Weekday() switch time.Saturday { case today + 0: fmt.Println("Today.") case today + 1: fmt.Println("Tomorrow.") case today + 2: fmt.Println("In two days.") default: fmt.Println("Too far away.") } }...
Go
package main import "fmt" var pow = []int{1, 2, 4, 8, 16, 32, 64, 128} func main() { for i, v := range pow { fmt.Printf("2**%d = %d\n", i, v) } }
Go
package main import ( "fmt" "runtime" ) func main() { fmt.Print("Go runs on ") switch os := runtime.GOOS; os { case "darwin": fmt.Println("OS X.") case "linux": fmt.Println("Linux.") default: // freebsd, openbsd, // plan9, windows... fmt.Printf("%s.", os) } }
Go
package main import "fmt" func Cbrt(x complex128) complex128 { } func main() { fmt.Println(Cbrt(2)) }
Go
package main import "fmt" func main() { var x, y, z int = 1, 2, 3 c, python, java := true, false, "no!" fmt.Println(x, y, z, c, python, java) }
Go
package main import "code.google.com/p/go-tour/pic" func Pic(dx, dy int) [][]uint8 { } func main() { pic.Show(Pic) }
Go
package main import "fmt" func adder() func(int) int { sum := 0 return func(x int) int { sum += x return sum } } func main() { pos, neg := adder(), adder() for i := 0; i < 10; i++ { fmt.Println( pos(i), neg(-2*i), ) } }
Go
package main import ( "fmt" "math/cmplx" ) var ( ToBe bool = false MaxInt uint64 = 1<<64 - 1 z complex128 = cmplx.Sqrt(-5 + 12i) ) func main() { const f = "%T(%v)\n" fmt.Printf(f, ToBe, ToBe) fmt.Printf(f, MaxInt, MaxInt) fmt.Printf(f, z, z) }
Go
package main import "fmt" type Vertex struct { X int Y int } func main() { v := Vertex{1, 2} v.X = 4 fmt.Println(v.X) }
Go
package main import "fmt" func main() { a := make([]int, 5) printSlice("a", a) b := make([]int, 0, 5) printSlice("b", b) c := b[:2] printSlice("c", c) d := c[2:5] printSlice("d", d) } func printSlice(s string, x []int) { fmt.Printf("%s len=%d cap=%d %v\n", s, len(x), cap(x), x) }
Go
package main import "fmt" type Vertex struct { Lat, Long float64 } var m map[string]Vertex func main() { m = make(map[string]Vertex) m["Bell Labs"] = Vertex{ 40.68433, -74.39967, } fmt.Println(m["Bell Labs"]) }
Go
package main import "fmt" func main() { p := []int{2, 3, 5, 7, 11, 13} fmt.Println("p ==", p) for i := 0; i < len(p); i++ { fmt.Printf("p[%d] == %d\n", i, p[i]) } }
Go
package main import ( "fmt" "math" ) func main() { fmt.Printf("Now you have %g problems.", math.Nextafter(2, 3)) }
Go
package main import "fmt" func fibonacci(c, quit chan int) { x, y := 0, 1 for { select { case c <- x: x, y = y, x+y case <-quit: fmt.Println("quit") return } } } func main() { c := make(chan int) quit := make(chan int) go func() { for i := 0; i < 10; i++ { fmt.Println(<-c) } quit <- 0...
Go
package main import "fmt" func main() { sum := 1 for sum < 1000 { sum += sum } fmt.Println(sum) }
Go
package main import "fmt" type Vertex struct { X int Y int } func main() { p := Vertex{1, 2} q := &p q.X = 1e9 fmt.Println(p) }
Go
package main import "fmt" func main() { var z []int fmt.Println(z, len(z), cap(z)) if z == nil { fmt.Println("nil!") } }
Go
package main import ( "net/http" ) func main() { // your http.Handle calls here http.ListenAndServe("localhost:4000", nil) }
Go
package main import ( "fmt" "math" ) func main() { fmt.Println("Happy", math.Pi, "Day") }
Go