723_promise_读取文件2

//读取文件

function mineReadFile(path) {
  return new Promise((resolve, reject) => {
    require("fs").readFile(path, (err, data) => {
      //判断
      if (err) {
        reject(err);
      }
      resolve(data);
    });
  });
}

mineReadFile("./source/1.txt").then(
  (value) => {
    console.log(value.toString());
  },
  (reason) => {
    console.log(reason);
  }
);