publics/gopay

Jerry 56210a7183 change func name and update comment		6 lat temu
..
client.go	4d843b9ae3 add checkCertFilePath()，add client.PostRequest()	6 lat temu
client_test.go	4d843b9ae3 add checkCertFilePath()，add client.PostRequest()	6 lat temu
model.go	3f368e61b1 struct 字段全部改为string	6 lat temu
param.go	4d843b9ae3 add checkCertFilePath()，add client.PostRequest()	6 lat temu
service_api.go	56210a7183 change func name and update comment	6 lat temu