codekingpro/portable-devtools

1// Copyright 2012 The Go Authors. All rights reserved.2// Use of this source code is governed by a BSD-style3// license that can be found in the LICENSE file.4 5// Keep in sync with ../base32/example_test.go.6 7package base64_test8 9import (10	"encoding/base64"11	"fmt"12	"os"13)14 15func Example() {16	msg := "Hello, 世界"17	encoded := base64.StdEncoding.EncodeToString([]byte(msg))18	fmt.Println(encoded)19	decoded, err := base64.StdEncoding.DecodeString(encoded)20	if err != nil {21		fmt.Println("decode error:", err)22		return23	}24	fmt.Println(string(decoded))25	// Output:26	// SGVsbG8sIOS4lueVjA==27	// Hello, 世界28}29 30func ExampleEncoding_EncodeToString() {31	data := []byte("any + old & data")32	str := base64.StdEncoding.EncodeToString(data)33	fmt.Println(str)34	// Output:35	// YW55ICsgb2xkICYgZGF0YQ==36}37 38func ExampleEncoding_Encode() {39	data := []byte("Hello, world!")40	dst := make([]byte, base64.StdEncoding.EncodedLen(len(data)))41	base64.StdEncoding.Encode(dst, data)42	fmt.Println(string(dst))43	// Output:44	// SGVsbG8sIHdvcmxkIQ==45}46 47func ExampleEncoding_DecodeString() {48	str := "c29tZSBkYXRhIHdpdGggACBhbmQg77u/"49	data, err := base64.StdEncoding.DecodeString(str)50	if err != nil {51		fmt.Println("error:", err)52		return53	}54	fmt.Printf("%q\n", data)55	// Output:56	// "some data with \x00 and \ufeff"57}58 59func ExampleEncoding_Decode() {60	str := "SGVsbG8sIHdvcmxkIQ=="61	dst := make([]byte, base64.StdEncoding.DecodedLen(len(str)))62	n, err := base64.StdEncoding.Decode(dst, []byte(str))63	if err != nil {64		fmt.Println("decode error:", err)65		return66	}67	dst = dst[:n]68	fmt.Printf("%q\n", dst)69	// Output:70	// "Hello, world!"71}72 73func ExampleNewEncoder() {74	input := []byte("foo\x00bar")75	encoder := base64.NewEncoder(base64.StdEncoding, os.Stdout)76	encoder.Write(input)77	// Must close the encoder when finished to flush any partial blocks.78	// If you comment out the following line, the last partial block "r"79	// won't be encoded.80	encoder.Close()81	// Output:82	// Zm9vAGJhcg==83}84