HJ2 计算某字符出现次数

Go的解法

package main

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

func main() {
    n := 0
    input := bufio.NewScanner(os.Stdin)

    //调用一次读取一行
    input.Scan()
    s := input.Text()
    s = strings.ToLower(s)
    //读取第二行
    input.Scan()
    ss := input.Text()
    ss = strings.ToLower(ss)
    for _, v := range s {
        if ss == string(v) {
            n++
        }
    }
    fmt.Println(n)
}