先调用downloadFile接口下载一个100多K的word文件，然后调用wx.openDocument打开这个文件，文件显示后3秒左右小程序闪退。代码如下 wx.downloadFile({       url: url,        success (res) {         console.log("########res:",res)         let file = res.tempFilePath                     wx.openDocument({             filePath: res.tempFilePath,             showMenu:true,             fileType:"doc",             success:function (res) {               console.log('打开文档成功')             },             fail:function (res) {               wx.showToast({                 title:'打开失败',                 duration:2000               })             },             complete:function (res) {                console.log(res);             }           })        }     })