wx.uploadImage({

localId: localId,

isShowProgressTips: 1,

success: function(res) {

var serverId = res.serverId; // 返回图片的服务器端ID

//console.log('服务器图片地址'+serverId)

that.serviceIds.push(serverId);

if (that.localIds.length > 0) {

that.uploadImage();

}

}

});

.Net 后台 WeiXin.MP.advancedAPIs.MediaApi.Get(accessToken, serviceId, ms); 方法根据serviceId下载图片 经常图片损坏