微信小程序 下载文件到本地 （解决文件名乱码问题）_微信下载图片名字乱码

 function loadfile(data){
    let url = data.file_url
    let fileName =data.title;
    wx.showLoading({
      title: '正在打开文件'
    })
  const manage = wx.getFileSystemManager();
  wx.downloadFile({
    url: url,
    success (res) {
      var savePath = wx.env.USER_DATA_PATH + "/" + fileName
      if (res.statusCode == 200) {
        manage.saveFile({
          tempFilePath: res.tempFilePath,
          filePath: savePath+'.docx',
          success:function(res){
            wx.openDocument({
               filePath: res.savedFilePath,
               success: function (res) {
               wx.hideLoading()
               }
             })
          }
        })
      }
    }
  })
}
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