package main

import "fmt"

var temp int64 = 10

func main() {
	fmt.Println(temp)
	test()
	fmt.Println(temp)

	s := "test2"
	suffix := ".png"
	res := test2(s, suffix)
	fmt.Println(res)
}

func test2(s, suffix string) bool {
	t1 := len(s) >= len(suffix)
	t2 := s[len(s)-len(suffix):] == suffix
	temp := t1 && t2
	return temp
}

func test() {
	fmt.Println(temp)
	temp = 100
}