vue-路由传参

1.声明式导航（router-link)

  <router-link to="/login">登录</router-link>

2.编程式导航（$router.push|replace)
params:属于路径一部分，需要占位

{
   path:'/search/:keyword?',
   component:Search,
   name:"search",
   meta:{show:true},
   props:{a:1,b:2}
},

query：不属于路径一部分，类似于localhost:8080/login?username="hutong"
(1)第一种、字符串形式

  this.$router.push('/login/'+this.username+'?time=' + this.time)

(2)第二种、模板字符串

  this.$router.push(`/login/${this.username}?time=${this.time}`)

(3)对象式写法

  this.$router.push({name:'login',query:{username:this.username},
  parmas:{time:this.time}})