You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: demo13.go
    path of file: ./repos/Golang_Puzzlers/src/puzzlers/article6/q2
    
    the code of the file until where you have to start completion: package main

import (
	"fmt"
)

func main() {
	// 重点1的示例。
	var srcInt = int16(-255)
	// 请注意，之所以要执行uint16(srcInt)，是因为只有这样才能得到全二进制的表示。
	// 例如，fmt.Printf("%b", srcInt)将打印出"-11111111"，后者是负数符号再加上srcInt的绝对值的补码。
	// 而fmt.Printf("%b", uint16(srcInt))才会打印出srcInt原值的补码"1111111100000001"。
	fmt.Printf("The complement of srcInt: %b (%b)\n",
		uint16(srcInt), srcInt)
	dstInt := int8(srcInt)
	fmt.Printf("The complement of dstInt: %b (%b)\n",
		uint8(dstInt), dstInt)
	fmt.Printf("The value of dstInt: %d\n", dstInt)
	fmt.Println()

	// 重点2的示例。
	fmt.Printf("The Replacement Character: %s\n", string(-1))
	fmt.Printf("The Unicode codepoint of Replacement Character: %U\n", '�')
	fmt.Printl
    
func main() {
	// 重点1的示例。
	var srcInt = int16(-255)
	// 请注意，之所以要执行uint16(srcInt)，是因为只有这样才能得到全二进制的表示。
	// 例如，fmt.Printf("%b", srcInt)将打印出"-11111111"，后者是负数符号再加上srcInt的绝对值的补码。
	// 而fmt.Printf("%b", uint16(srcInt))才会打印出srcInt原值的补码"1111111100000001"。
	fmt.Printf("The complement of srcInt: %b (%b)\n",
		uint16(srcInt), srcInt)
	dstInt := int8(srcInt)
	fmt.Printf("The complement of dstInt: %b (%b)\n",
		uint8(dstInt), dstInt)
	fmt.Printf("The value of dstInt: %d\n", dstInt)
	fmt.Println()

	// 重点2的示例。
	fmt.Printf("The Replacement Character: %s\n", string(-1))
	fmt.Printf("The Unicode codepoint of Replacement Character: %U\n", '�')
	fmt.Println()

	// 重点3的示例。
	srcStr := "你好"
	fmt.Printf("The string: %q\n", srcStr)
	fmt.Printf("The hex of %q: %x\n", srcStr, srcStr)
	fmt.Printf("The byte slice of %q: % x\n", srcStr, []byte(srcStr))
	fmt.Printf("The string: %q\n", string([]byte{'\xe4', '\xbd', '\xa0', '\xe5', '\xa5', '\xbd'}))
	fmt.Printf("The rune slice of %q: %U\n", srcStr, []rune(srcStr))
	fmt.Printf("The string: %q\n", string([]rune{'\u4F60', '\u597D'}))
}