package main

import (

"fmt"

"strconv"

"strings"

)

//判断url 是否以http开始，没有补全

func urlprocess(url string) string {

if !strings.HasPrefix(url, "http://") {

url = fmt.Sprintf("http://%s", url)

}

return url

}

//判断path 是否以/结尾，没有补全

func pathprocess(path string) string {

if !strings.HasSuffix(path, "/") {

path = fmt.Sprintf("%s/", path)

}

return path

}

func main() {

var (

url   string

path  string

str   string

count int

arr   []string

jstr  string

istr  string

)

fmt.Scanf("%s%s", &url, &path)

url = urlprocess(url)

path = pathprocess(path)

//fmt.Println("url:", url)

//fmt.Println("path:", path)

//替换字符串,-1代表全部替换

str = " hello, zhongguomayun, hello, dezhonguo, woe "

str = strings.Replace(str, "g", "z", -1)

fmt.Println("str:", str)

//字符串在原串里面出现的次数

count = strings.Count(str, "o")

fmt.Println("str counts:", count)

//去掉首尾空白字符

str = strings.TrimSpace(str)

fmt.Println(str)

//去掉字符串首尾cut字符

str = strings.Trim(str, "e")

fmt.Println("Trim:", str)

//去掉字符串首cut字符

str = strings.TrimLeft(str, "h")

fmt.Println("TrimLeft:", str)

//去掉字符串尾cut字符

str = strings.TrimRight(str, "o")

fmt.Println("TrimRight:", str)

//以空格为分隔符，返回一个slice

arr = strings.Fields(str)

fmt.Println(arr)

//以一个split作为分隔符，返回一个slice

arr = strings.Split(str, ",")

fmt.Println(arr)

//以一个split把slice里面的所有元素串起来

jstr = strings.Join(arr, ";")

fmt.Println(jstr)

//数字转化成字符串

istr = strconv.Itoa(9999)

fmt.Println(istr)

//字符串转化成数字型

number, error := strconv.Atoi("88888")

if error == nil {

fmt.Println(number)

}

}