小程序如何实现页面跳转

<!-- sample.wxml -->
<view class="btn-area">
 <navigator url="../my/my">跳转到新页面</navigator>
</view>

<view bindtap=&#39;jump&#39;>跳转</view>

jump:function(){
  wx.navigateTo({
   url: '../login/login',
   success: function(res) {
 
   },
   fail: function(res) {
 
   },
   complete: function(res) {
 
   },
  })
 }

navigateto_index: function (event) { 
 wx.redirectTo({ 
 url: '../index/index', 
 success: function (res) { 
 // success 
 }, 
 fail: function () { 
 // fail 
 }, 
 complete: function () { 
 // complete 
 } 
 }) 
 
 }

wx.navigateBack({ 
 delta: 1, // 回退前 delta(默认为1) 页面 
 success: function (res) { 
 // success 
 }, 
 fail: function () { 
 // fail 
 }, 
 complete: function () { 
 // complete 
 } 
 })