プログラミング言語 Go は Google が 2009 年秋にオープンソースで公開した新しいプログラミング言語です。C や C++ のようなコンパイル言語の良さをもちつつ、Python のような動的言語でのプログラムの書き易さを兼ねそなえた特徴をもっています。クラスを使わないオブジェクト指向の言語で、コンカレントに実行するための仕組みもそなえています。 プログラミングをより速く、より生産的に、そしてより楽しくしてくれる新しいプログラミング言語 Go について説明します。
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Las primeras oraciones resumen los conceptos clave de primeros auxilios y su objetivo de brindar atención inmediata a una víctima hasta que llegue la asistencia médica profesional para evitar que sus lesiones empeoren. El documento luego proporciona instrucciones detalladas sobre cómo evaluar a una víctima, tratar diferentes emergencias como obstrucciones de las vías respiratorias, y realizar procedimientos vitales como RCP.
Pitney Bowes use of social platform for collaborating with its customers: The Pitney Bowes User Forums case study, presented by Matt Broder at the B2B Social Communications Conference on September 16, 2009.
11. 入力: bufio
http://golang.org/pkg/bufio/#Reader.ReadBytes
func (*Reader) ReadBytes
func (b *Reader) ReadBytes(delim byte) (line []byte, err os.Error)
ReadBytes reads until the first occurrence of delim in the input, returning a string containing the data up to and
including the delimiter. If ReadBytes encounters an error before finding a delimiter, it returns the data read
before the error and the error itself (often os.EOF). ReadBytes returns err != nil if and only if line does not end in
delim.
import ("bufio"; "os")
in := bufio.NewReader(os.Stdin)
line, err := in.ReadBytes('n')
if err != nil { ... }
12. 出力: fmt
http://golang.org/pkg/fmt/#Printf
func Printf
func Printf(format string, a ...interface{}) (n int, errno os.Error)
Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and
any write error encountered.
import "fmt"
fmt.Printf("> ")
fmt.Printf("%d", i)
fmt.Printf("%#v", v)
18. Read: getSymbol
func getSymbol(buf []byte) (sym string, nbuf []byte) {
var i int
for i = 0; i < len(buf); i++ {
if !isAlpha(buf[i]) && !isDigit(buf[i]) {
break
}
}
return string(buf[0:i]), buf[i:]
}