[GO]字符串的使用

package main

import (
    "fmt"
    "strings"
)

func main() {
    //判断字符串1是否包含字符串2，如果包含则返回true , 不包含则返回false
    fmt.Println(strings.Contains("hello go", "hello"))
    fmt.Println(strings.Contains("hello go", "abc"))

    //joins的组合
    s:=[]string{"abc", "hello", "mike", "go"}
    buf := strings.Join(s, "@")
    fmt.Println("buf = ", buf)

    //index, 查找子串的位置
    fmt.Println(strings.Index("abcdhello", "hello"))
    fmt.Println(strings.Index("abcd", "e")) //如果不包含子串的话则返回-1

    buf = strings.Repeat("go", 3) //重复三次打印
    fmt.Println("buf = ", buf)

    buf = "hello@go@mike"
    s2 := strings.Split(buf, "@") //打印以"@"分隔的结果
    fmt.Println("buf = ", s2)

    buf = strings.Trim("    are you ok    ", " ") //去掉字符串两边的空格
    fmt.Printf("buf = #%s#
", buf)

    buf1 := strings.Fields("     are you ok          ") //去掉所有的空格后返回一个切片
    for i, data := range buf1{
        fmt.Println(i, ", ", data)
    }
}

执行的结果为

false
buf =  abc@hello@mike@go
4
-1
buf =  gogogo
buf =  [hello go mike]
buf = #are you ok#
0 ,  are
1 ,  you
2 ,  ok