python的execjs执行js如何获取js函数的return值

Question

var NodeRSA = require('node-rsa')
var fs = require('fs')

function decrypt(crypt_data, pub_path) {
 fs.readFile(pub_path, function (err, data) {
    var key = new NodeRSA(data);
    let rawText = key.decryptPublic(crypt_data, 'utf8');
    console.log(rawText);
    return rawText;
 });
}

python方面如何接收到js函数(decrypt)的返回值呢？

Answer 1

decrypt内部异步了， 这个return rawText;不是decrypt返回值, 用readFileSync, 还有就是，说好的代码不要用图片呢！！！

var NodeRSA = require('node-rsa')
var fs = require('fs')

function decrypt(crypt_data, pub_path) {
    var data = fs.readFileSync(pub_path);
    var key = new NodeRSA(data);
    let rawText = key.decryptPublic(crypt_data, 'utf8');
    console.log(rawText);
    return rawText;
}

查看nodejs API