go_字符和字符串处理

package main

import (
	"fmt"
	"unicode/utf8"
)

func main() {
	s:="Yes我爱上百度！"
	fmt.Println(s)
	for _,b:=range []byte(s)  {
		fmt.Printf("%X ",b)
	}
	fmt.Println()

	for i,ch:=range s{//ch is  a rune
		fmt.Printf("(%d %X)",i,ch)
	}
	fmt.Println()
	fmt.Println("Rune 长度",
			utf8.RuneCountInString(s))

	bytes :=[]byte(s)
	for len(bytes)>0{
		ch,size:=utf8.DecodeRune(bytes)
		bytes = bytes[size:]
		fmt.Printf("%c ",ch)
	}
	fmt.Println()

	for i,ch :=range []rune(s){
		fmt.Printf("(%d %c)",i,ch)
	}
	fmt.Println()
}