package main

import (
    "fmt"
    "strings"
)

func main() {
    s := "ceshi"
    //s字符串时候以"mmm"开头
    fmt.Println(strings.HasPrefix(s, "mmm"))
    //s是否以"hi"结尾
    fmt.Println(strings.HasSuffix(s, "hi"))

    var str string = "This is an example of a string"
    fmt.Printf("T/F? Does the string \"%s\" have prefix %s? ", str, "Th")
    fmt.Printf("%t\n", strings.HasPrefix(str, "Th"))

}