使用eVSCertifyRequest创建USPS标签，我按如下方式传递参数:https://secure.shippingapis.com/ShippingAPI.dll?API=eVSCertify&XML=14X6LABELMiteshJainMiteshJain52NORMANDYRDQWEMARLTONNJ0805308051234567890falseJRC,LLCJRC,LLC110South8thStreetSuite104PhiladelphiaPA1500115000123456789false1PRIORITYFLATRATEENVELOPE847654321PD