1. 修复支付接口中"已付金额"错误的Bug.

task/taskpay.cpp

@@ -57,6 +57,7 @@ void TaskPay::setWindow()
 {
     _window = new FMVipOrder;
     session()->addData(PosProps.OrderAmount, getPosJsonValue(PosProps.OrderAmount).toInt());
+    session()->addData(PosProps.PaidAmount, getPosJsonValue(PosProps.PaidAmount).toInt());
 
     connect(qobject_cast<FMVipOrder*>(_window), SIGNAL(pay()), this, SLOT(onPay()));
 }