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510_laomengkuang_wxsmall_customer
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510_laomengkuang_wxsmall_cu.../laomenkuang_project/pages/givePage/givePage.js

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  1. // pages/givePage/givePage.js

  2. Page({

  3. 

  4.   /**

  5.    * 页面的初始数据

  6.    */

  7.   data: {

  8.     buyNumber: 1,

  9.     num: 1,

  10.   },

  11. 

  12.   /**

  13.    * 生命周期函数--监听页面加载

  14.    */

  15.   onLoad: function (options) {

  16. 

  17.   },

  18. 

  19.   /**

  20.    * 生命周期函数--监听页面初次渲染完成

  21.    */

  22.   onReady: function () {

  23. 

  24.   },

  25. 

  26.   /**

  27.    * 生命周期函数--监听页面显示

  28.    */

  29.   onShow: function () {

  30. 

  31.   },

  32. 

  33.   /**

  34.    * 生命周期函数--监听页面隐藏

  35.    */

  36.   onHide: function () {

  37. 

  38.   },

  39. 

  40.   /**

  41.    * 生命周期函数--监听页面卸载

  42.    */

  43.   onUnload: function () {

  44. 

  45.   },

  46. 

  47.   /**

  48.    * 页面相关事件处理函数--监听用户下拉动作

  49.    */

  50.   onPullDownRefresh: function () {

  51. 

  52.   },

  53. 

  54.   /**

  55.    * 页面上拉触底事件的处理函数

  56.    */

  57.   onReachBottom: function () {

  58. 

  59.   },

  60. 

  61.   /**

  62.    * 用户点击右上角分享

  63.    */

  64.   onShareAppMessage: function () {

  65. 

  66.   },

  67.   addFn: function () {

  68.     if (this.data.num < 5) {

  69.       this.data.num++;

  70.       this.setData({

  71.         buyNumber: this.data.num

  72.       })

  73.     }

  74.   },

  75.   subtractFn: function () {

  76.     if (this.data.num > 1) {

  77.       this.data.num--;

  78.       this.setData({

  79.         buyNumber: this.data.num

  80.       })

  81.     }

  82.   },

  83. })