题解 | #统计字符#
统计字符
http://www.nowcoder.com/practice/539054b4c33b4776bc350155f7abd8f5
比较粗暴
let str = readline();
let a = str.replace(/[^a-zA-Z]+/g, '');
let b = str.replace(/[^\s]+/g, '');
let c = str.replace(/[^0-9]+/g, '');
let d = str.replace(/[a-zA-Z0-9\s]+/g, '');
console.log(a.length);
console.log(b.length);
console.log(c.length);
console.log(d.length);
埋点都出来了
查看9道真题和解析