go/doc/progs/echo.go
Rob Pike 40d5435278 update tutorial to new language.
add a section on printing
add a section on allocation

R=rsc
DELTA=500  (278 added, 15 deleted, 207 changed)
OCL=22381
CL=22456
2009-01-09 15:16:31 -08:00

33 lines
551 B
Go

// Copyright 2009 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 (
"os";
"flag";
)
var n_flag = flag.Bool("n", false, "don't print final newline")
const (
Space = " ";
Newline = "\n";
)
func main() {
flag.Parse(); // Scans the arg list and sets up flags
var s string = "";
for i := 0; i < flag.NArg(); i++ {
if i > 0 {
s += Space
}
s += flag.Arg(i)
}
if !*n_flag {
s += Newline
}
os.Stdout.WriteString(s);
}