Node.js学习（三）阻塞与非阻塞

2020-02-01 167 阅读1分钟

阻塞

const fs = require("fs");
const txt = fs.readFileSync("./text/abcdefg.txt");
// console.log(txt); //Buffer
console.log(txt.toString());

非阻塞

const fs = require("fs");
fs.readFile("./text/abcdefg.txt", (err, data) => {
    if (err) {
        console.log(err)
    } else {
        console.log(data.toString());
    }
});
// console.log(txt); //Buffer
console.log("程序执行完毕");