1-9 动态路由与get

const koa=require("koa");
const app=new koa();
const router=require("koa-router")();
router.get("/playlist",async ctx=>{
    /* get */
    console.log(ctx.qurey);
})
router.get("/subject/:id",async ctx=>{
    /* 动态路由 */
    console.log(ctx.params);
})
app.use(router.routes());
app.listen(4040)