UML类图

questionOrder

+ createOrder(params):returnType+ payInfo(params)

接口和类

+ operation1(params):returnType- operation2(params)- operation3()

orderFactory

curriculumOrder

virtualgifPay

+ payInfo(params):returnType

handleTimeout

+ operation1(params):returnType

payTimeout

payFactory

chatOrder

virtualgifOrder

questionPay

chatPay

curriculumPay

orderTimeout

callPay

callOrder