Go语言之字符串

package main

import (
    "fmt"
    "strings"
)

func main(){
    s1 := "helloworld"
    //是否包含指定的内容-->bool
    fmt.Println(strings.Contains(s1,"l"))

    //是否包含任意字符
    fmt.Println(strings.ContainsAny(s1,"abcd"))

    //统计l在s1出现的次数
    fmt.Println(strings.Count(s1,"l"))

    s2 := "20190525课堂笔记.txt"

    //以xxx开头
    if strings.HasPrefix(s2,"201905"){
        fmt.Println("19年5月的文件。。")
    }

    //以xxx结尾
    if strings.HasSuffix(s2,".txt"){
        fmt.Println("文本文档")

    }

    //查找llo在s1中的位置，如果不存在返回-1
    fmt.Println(strings.Index(s1,"llo"))
    fmt.Println(strings.LastIndex(s1,"h"))

    //字符串的拼接
    ss1 := []string{"abc","world","hello","rudy"}
    s3 := strings.Join(ss1,"*")
    fmt.Println(s3)

    //切割,
    s4 := "123,456,789,abc"
    ss2 := strings.Split(s4,",")
    fmt.Printf("ss2的类型是%T，数值是%s\n",ss2,ss2)


}