对以下代码片段作用的最准确描述是（） try { var value = wx.getStorageSync（'key') if （value) { // Do something with return value } } catch （e) { // Do something when catch error }A．从本地缓存中异步获取指定 key 的内容，并把该内容存储在data中。B．从本地缓存中同步获取指定 key 的内容，并把该内容存储在data中。C．从本地缓存中异步获取指定 key 的内容，并把该内容存储在value中。D．从本地缓存中同步获取指定 key 的内容，并把该内容存储在value中。
对以下代码片段作用的最准确描述是（） try { var value = wx.getStorageSync（'key') if （value) { // Do something with return value } } catch （e) { // Do something when catch error }
A．从本地缓存中异步获取指定 key 的内容，并把该内容存储在data中。
B．从本地缓存中同步获取指定 key 的内容，并把该内容存储在data中。
C．从本地缓存中异步获取指定 key 的内容，并把该内容存储在value中。
D．从本地缓存中同步获取指定 key 的内容，并把该内容存储在value中。
参考答案和解析
异步清空本地数据缓存
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