'Get the camera'
// Synchronously enqueue — this never applies backpressure
，详情可参考同城约会
In the following simplified trace generated by our workflow, a customer uses a 100% off promo code. The business logic calculates the total as $0.00 and attempts to pass it to the payment gateway, but the payment gateway rejects the API call because the minimum charge amount is $0.50, causing a 500 Internal Server Error:。业内人士推荐同城约会作为进阶阅读
User-friendly interface