koarouter的路由基本能力

router.put('/users/:id', (ctx, next) => { ctx.body = `更新用户 ID: ${ctx.params.id}`; });

 

router.get('/:category/:title', (ctx, next) => { // 访问 /news/hello-world 时 // ctx.params = { category: 'news', title: 'hello-world' } ctx.body = `Category: ${ctx.params.category}, Title: ${ctx.params.title}`; });

 

 

// 正则约束 (仅匹配数字ID) router.get('/users/:id(\\d+)', (ctx, next) => { ctx.body = `Numeric User ID: ${ctx.params.id}`; });