golang標準api-bytesパッケージ練習

package byt 

import "fmt"
import "bytes"

func Start() {
	
	b1 :=[]byte("### ###")
	fmt.Println(string(bytes.Trim(b1,"#")))
	fmt.Println("=====================")
	b2 := []byte("Google")
	b3 := []byte("google")
	fmt.Println(bytes.Compare(b2,b3))
	fmt.Println(bytes.Contains(b2,[]byte("goo")))
	fmt.Println(bytes.Contains(b2,[]byte("Goo")))
	var bb = &bytes.Buffer{}
	bb.Len()
	
	bb.WriteByte(byte('x'))
	 fmt.Println(bb.Len())
	fmt.Println("=======byte read =========")
	//var b4 byte; 
	b5,_:= bb.ReadByte();
	fmt.Println(string(b5))
	fmt.Println("============== bytes.Fields=====================")
	
	 for _,v := range  bytes.Fields([]byte("       ")){
		
		fmt.Println(string(v))
	}
	
	
	fmt.Println("============== bytes.FieldsFunc=====================")
	
	
	f1 :=func(r rune) bool{
		
		if r == ',' {
			return true
		} else {
			return false
		}
	}
	 for _,v := range  bytes.FieldsFunc([]byte(" , , , "),f1){
		
		fmt.Println(string(v))
	}
	
	fmt.Println("====================IndexRune================================")
	
	fmt.Println(bytes.IndexRune([]byte(" , "),rune(' ')))
	
	fmt.Println("====================HasPrefix================================")
	fmt.Println(bytes.HasPrefix([]byte(" , "),[]byte(" ")))
	
	fmt.Println("==============================================")
	fmt.Println(bytes.HasSuffix([]byte(" , "),[]byte(" ")))
	fmt.Println("=====================NewBuffer=========================")
	var bbs *bytes.Buffer = bytes.NewBuffer([]byte(" "))
	
	fmt.Println(string(bbs.Bytes()),bbs.Len(),bbs.Cap())
	var bs = []byte("xxxxxxxxxxxx")
	var reader *bytes.Reader = bytes.NewReader(bs)
	fmt.Println(reader.Len(),reader.Size())
	
	
}

D:/work/software/go1.5.windows-386/go/bin/go.exe build -i [D:/go/stu/src/app]
 :   0.
D:/go/stu/src/app/app.exe  [D:/go/stu/src/app]
==============
strings eq : true
strings Repeat : dongtiangdongtiangdongtiangdongtiangdongtiangdongtiangdongtiangdongtiangdongtiangdongtiang
22825
=====  
  ' '  Unicode  。
 
========bytes =======
 
=====================
-1
false
true
1
=======byte read =========
x
============== bytes.Fields=====================
 
 
 
 
============== bytes.FieldsFunc=====================
 
 
 
 
====================IndexRune================================
4
====================HasPrefix================================
true
==============================================
true
=====================NewBuffer=========================
  6 32
12 12
 :   0.