解决方案:
将https修改为http://在Android SDK manager中,的tools文件夹下,选择options...选项,
勾选 Force https//... sources to be fetched using http:// 之后点击close
然后再 c:\\windows\system32\drivers\etc\hosts添加如下内容
203.208.46.146 www.goole.com
203.208.46.146 dl.goole.com
203.208.46.146 dl-ssl.google.com
配置完成,重新打开 Android SDK Manager即可更新下载了