data:{

},
onLoad: function (option) {
var postId = option.id;
this.setData({
collected: postId
})




var postsCollected = wx.getStorageSync('posts_ollected')
// 判断是否生成缓存变量
if (postsCollected){
var postcollected = postsCollected[postId];
this.setData({
collecte: postcollected
})
}else{
var postsCollected={};
postsCollected[postId]=false;
wx.setStorageSync("posts_ollected", postcollected);
}
},
onCollectedTap: function (event) {
var postsCollected = wx.getStorageSync('posts_collected');
var postCollected = postsCollected[collected];
// 收藏变成未收藏，未收藏变成收藏
postCollected = !postCollected
postsCollected[collected] = postCollected;
//文章是否收藏的缓存值
wx.setStorageSync(posts_ollected, postCollected)
//跟新数据绑定变量，从而实现切换图片
this.setData({
collected: postCollected
})
}