题解 | #统计字符#
统计字符
http://www.nowcoder.com/practice/539054b4c33b4776bc350155f7abd8f5
let str;
while(str = readline()){
let yw = str.match(/[a-z]/gi)?str.match(/[a-z]/gi).length:0;
let kg = str.match(/\s+?/gi)?str.match(/\s+?/gi).length:0;
let sz = str.match(/\d/gi)?str.match(/\d/gi).length:0;
let qt = str.length - yw - kg - sz;
console.log(yw+"\n"+kg+"\n"+sz+"\n"+qt)
} 
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