题解 | #统计字符#
统计字符
https://www.nowcoder.com/practice/539054b4c33b4776bc350155f7abd8f5
const readline = require('readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
rl.on('line', function (line) {
const tokens = line.split('');
let charNum = 0;
let blankSpace = 0;
let num = 0;
let other = 0;
tokens.forEach((item) => {
if (/[0-9]/.test(item)) {
num++;
} else if (/[a-zA-Z]/.test(item)) {
charNum++;
} else if (item === ' ') {
blankSpace++;
} else {
other++;
}
})
console.log(charNum);
console.log(blankSpace);
console.log(num);
console.log(other);
});
，
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