By creaing an NAT gateway, you can connect a private-network CVM to the Internet.
1) Create NAT gateway
You can use [CreateNatGateway](/doc/api/245/4094) API to purchase a NAT gateway. This API will return an order number, and you can use [QueryNatGatewayProductionStatus](https://cloud.tencent.com/doc/api/245/4089) API to query the inf
