Go语言中字符串操作常用函数介绍

• 操作

    //"helloogo"中是否包含"hello"
    fmt.Println(strings.Contains("helloogo", "hello"))
    fmt.Println(strings.Contains("helloogo", "goe"))

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

    //Index 查找子串所在位置
    fmt.Println(strings.Index("abcdhello", "hello"))
    fmt.Println(strings.Index("abcdhello", "go"))

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

    //Split 以指定的分隔符对字符串进行拆分
    buf = "hello&abc&go&mike&you"
    s2 := strings.Split(buf, "&")
    fmt.Println("s2 = ", s2)

    //Trim 去掉两头的字符
    buf = strings.Trim("      are you ok    ", " ")
    fmt.Println("buf = ", buf)

    //Fields 去掉空格，把元素放入切片中
    s3 := strings.Fields("    are you ok?    ")
    for i, data := range s3 {
        fmt.Println(i, ", ", data)
    }

• 输出

true
false
buf =  abc_hello_mike_go
4
-1
buf =  gogogo
s2 =  [hello abc go mike you]
buf =  are you ok
0 ,  are
1 ,  you
2 ,  ok?