对着源代码也没看出啥毛病…
代码如下:
var postsData = require(’…/…/…/data/posts-data.js’)
Page({

/**

• 页面的初始数据
  */
  data: {

},

/**

• 生命周期函数–监听页面加载
  */
  onLoad: function(options) {
  var postId = options.id;
  this.data.currentPostId = postId;
  var postData = postsData.postList[postId];
  this.setData({
  postData: postData
  });

var postsCollected = wx.getStorageSync('posts_Collected')
if (postsCollected) {
  var postCollected = postsCollected[postId]
  if (postCollected) {
    this.setData({
      collected: postsCollected
    })
  }
} else {
  var postsCollected = {};
  postsCollected[postId] = false;
  wx.setStorageSync('posts_collected', postsCollected)
}

},

onCollectionTap: function(event) {
var postsCollected = wx.getStorageSync(‘posts_collected’);
var postCollected = postsCollected[this.data.currentPostId];
//取反,未收藏变成收藏,收藏变成未收藏
postCollected = !postCollected;
postsCollected[this.data.currentPostId] = postCollected;
//更新文章的缓存值
wx.setStorageSync(‘posts_collected’, postsCollected);
//更新数据绑定变量,从而实现切换图片
this.setData({
collected: postsCollected
})
console.log(collected)

},

/**

• 生命周期函数–监听页面初次渲染完成
  */
  onReady: function() {

},

/**

• 生命周期函数–监听页面显示
  */
  onShow: function() {

},

/**

• 生命周期函数–监听页面隐藏
  */
  onHide: function() {

},

/**

• 生命周期函数–监听页面卸载
  */
  onUnload: function() {

},

/**

• 页面相关事件处理函数–监听用户下拉动作
  */
  onPullDownRefresh: function() {

},

/**

• 页面上拉触底事件的处理函数
  */
  onReachBottom: function() {

},

/**

• 用户点击右上角分享
  */
  onShareAppMessage: function() {

}
})