当执行 wget url 命令报以下错误；
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 10.10.8.71
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|10.10.8.71|:443... failed: Connection refused.
解决办法：
1.利用站长工具获取到网址的真实IP地址；
2.配置服务器hosts文件；
echo -e "\n185.199.111.133 raw.githubusercontent.com" >> /etc/hosts
再次执行
wget url
结果：
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 185.199.111.133
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|185.199.111.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
