Go语言怎么将字符串转换为驼峰命名

package main

import (
    "fmt"
    "regexp"
    "strings"
)

func toCamelCase(s string) string {
    // 使用正则表达式匹配单词边界，包括下划线和空格
    re := regexp.MustCompile(`[\s_-]+`)
    words := re.Split(s, -1)

    for i := 1; i < len(words); i++ { // 从第二个单词开始，因为第一个单词可能不需要大写
        words[i] = strings.Title(words[i]) // 将单词首字母大写
    }

    return strings.Join(words, "")
}

func main() {
    testString := "hello_world this is a test"
    camelCaseString := toCamelCase(testString)
    fmt.Println(camelCaseString) // 输出: HelloWorldThisIsATest
}

func toLowerCamelCase(s string) string {
    re := regexp.MustCompile(`[\s_-]+`)
    words := re.Split(s, -1)

    // 将第一个单词转换为小写
    if len(words) > 0 {
        words[0] = strings.ToLower(words[0])
    }

    for i := 1; i < len(words); i++ {
        words[i] = strings.Title(words[i])
    }

    return strings.Join(words, "")
}

func main() {
    testString := "Hello_World this is a test"
    camelCaseString := toLowerCamelCase(testString)
    fmt.Println(camelCaseString) // 输出: helloWorldThisIsATest
}

func toCamelCaseWithNumbers(s string) string {
    re := regexp.MustCompile(`[\s_-]+`)
    words := re.Split(s, -1)

    for i := 0; i < len(words); i++ {
        // 如果单词以数字开头，则跳过
        if len(words[i]) > 0 && (words[i][0] >= '0' && words[i][0] <= '9') {
            continue
        }
        words[i] = strings.Title(words[i])
    }

    return strings.Join(words, "")
}

func main() {
    testString := "hello_123world this is a test"
    camelCaseString := toCamelCaseWithNumbers(testString)
    fmt.Println(camelCaseString) // 输出: Hello123WorldThisIsATest
}