>[info] string * **检查一个字符串是否包含另一个子字符串：** ~~~ package main import ( "fmt" "strings" ) func main() { s := "Hello, World!" substr := "World" // 检查一个字符串是否包含另一个子字符串 if strings.Contains(s, substr) { fmt.Println("字符串包含子字符串") } else { fmt.Println("字符串不包含子字符串") } } ~~~ * **分割成子字符串切片：** ~~~ package main import ( "fmt" "strings" ) func main() { str := "apple,banana,cherry" result := strings.Split(str, ",") // 输出: [apple banana cherry] fmt.Println(result) } ~~~