题解 | #统计字符# 攒人品

const readline=require("readline")
const rl=readline.createInterface({
    input:process.stdin,
    output:process.stdout
})
rl.on("line",(line)=>{
    const str=line
    let character=0
    let space=0
    let number=0
    let other=0
    for(let item of str){
        if(item>="a"&&item<="z"||item>="A"&&item<="Z"){
            character++
        }else if(item===" "){
            space++
        }else if(!Object.is(NaN,Number(item))){
            number++
        }else{
            other++
        }
    }
    console.log(character)
    console.log(space)
    console.log(number)
    console.log(other)
})