opencart配置United States Postal Service快递

1.安装United States Postal Service

2.登录https://registration.shippingapis.com/,注册帐号,稍后会收到邮件

3.打开邮件,记下User ID (Username) 

4.配置下面内容

原文地址:https://www.cnblogs.com/chixiaobai/p/5583720.html