题解 | #计算某字符出现次数#

function repeatNum () {
    const str = readline()
    const rep = readline()
    const strlow = str.toLowerCase();
    const replow = rep.toLowerCase();
    let equal = 0;
    // const strArr = strlow.split('');
    for (s of strlow) {
        if (s === replow) {
            equal++
        }
    }
    return equal
}
console.log(repeatNum('c', 'f'))

获取第一行，第二行数据的方法用readline()