Koa2中操作cookie

const Koa = require("koa")
const app = new Koa()
app.use(async (ctx)=>{
    // 设置cookie
    ctx.cookies.set("a","aaa")
    ctx.cookies.set("b","bbb")
    ctx.cookies.set("c","ccc")
    ctx.cookies.set("d","ddd")
    // 获取cookie
    const cookieA =ctx.cookies.get("a");
    const cookieB =ctx.cookies.get("b");
    const cookieC =ctx.cookies.get("c");
    const cookieD =ctx.cookies.get("d");
    console.log(cookieA,cookieB,cookieC,cookieD);
    ctx.body = "cookie demo by koa2"
});
// 监听3000端口
app.listen(3000)
console.log("server is running,  http://localhost:3000");