1-3 get,post

1 get

1-1 get传值

locahost?start=0;

ctx.request.query //后台获取

1-2 动态路由

//后台配置
router.get(/subject/:id,async ctx=>ctx.body="xxx")

ctx.request.params //后台获取动态路由的书

2 post

安装依赖

npm i koa-bodyparser -S

var Koa = require('koa');
var bodyParser = require('koa-bodyparser');
var app = new Koa();
app.use(bodyParser());
app.use(async ctx => {
  ctx.body = ctx.request.body;
});