- 当前 Bug 的表现（可附上截图） [图片] - 预期表现 - 复现路径 - 提供一个最简复现 Demo //删除明细 deleteDetail(e){     //e.currentTarget.id     //e.currentTarget.dataset.index     var that = this     var pojos     console.log("deleteDetail")     console.log(that.data)     console.log(that.data.pojos0.lenght)     for (var i = 0; i<that.data.pojos0.lenght;i++){         if (i != e.currentTarget.dataset.index){             pojos.push(that.data.pojos0[i])         }     }     that.setData({         pojos0:pojos     }) } 模拟与真机上都调试过：页面渲染是正常的，打印出来却是 undefined