我的目的就是想把剪切板的內容放到textarea中我覺得wx.getClipboardData這個方法應該是異步的下面這樣寫一直都是空的所以我用promise封裝了一下想在then中再賦值但是我在then中處理this.setData時發現this.data.copy2還是空的是我promise寫的不對嗎constapp=getApp()Page({data:{copy:'',copy2:''},test(){wx.getClipboardData({success:function(res){this.copy2=res.data}})console.log(this.data.copy2)//一直都是空的this.setData({copy:this.data.copy2})},onLoad:function(){this.test()}})封裝后test(){returnnewPromise((resolve,reject)=>{wx.getClipboardData({success:function(res){this.copy2=res.dataresolve()}})})}onLoad:function(){this.test().then(()=>{console.log(this.data.copy2)this.setData({copy:this.data.copy2})})}