题解 | #计算某字符出现次数#

package main

import (
	"bufio"
	"fmt"
	"os"
	"strings"
)

func main() {
	in := bufio.NewScanner(os.Stdin)
    in.Scan()
	str1 := in.Text()
    in.Scan()
	str2 := in.Text()
	s1 := strings.ToLower(str1)
	s2 := strings.ToLower(str2)
	ret := strings.Count(s1, s2)
	fmt.Printf("%d\n", ret)
}