execjs使用指南-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_44388373/article/details/122478683

1. 正常调用

import execjs

print(execjs.eval("'red yellow blue'.split(' ')"))

ctx = execjs.compile("""
     function add(x, y) {
         return x + y;
     }
    """)
print(ctx.call("add", 1, 2))

2. 当js需要调用其他模块或者需要使用windows对象

2.1 js修改

在js前面加上

const jsdom = require("jsdom");
const { JSDOM } = jsdom;
const dom = new JSDOM(`<!DOCTYPE html><p>Hello world</p>`);
window = dom.window;
document = window.document;
XMLHttpRequest = window.XMLHttpRequest;

2.2 执行代码

import execjs

with open('1.js', 'r', encoding='UTF-8') as file:
     result = file.read()
# cwd=本地安装路径
js_obj = execjs.compile(result ,cwd='C:\Users\longmai\node_modules'),

print(js_obj.call("add", 1, 2))
# 转自:https://blog.youkuaiyun.com/qq_36853469/article/details/105075131

3. 更换execjs环境

import execjs
import os

os.environ["EXECJS_RUNTIME"] = "PhantomJS"

with open('1.js', 'r', encoding='UTF-8') as file:
     result = file.read()

#  加载JS文件
ctx = execjs.compile(result)
# 调用js方法  第一个参数是JS的方法名，后面的为js方法的参数
print(ctx.call('doencodeacc', 1, 2))
# 转自: https://www.cnblogs.com/mysticbinary/p/12055807.html