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2 ", Slave Slave Configuration Information: IP: 192.168. 127.129 Port: 6379, OS: Linux尹旭轻轻一笑：好吧，整编东瓯军队的事情还要忙活，等等再看吧。First of all, let's introduce the business: in the purchase process, you can select the color of the mobile phone and enter the purchase quantity. At the same time, there are two display areas in the page, which respectively display the color and quantity that the user has just selected. There is also a button that dynamically displays the next operation. We need to query the inventory corresponding to the mobile phone of this color. If the inventory quantity is less than the purchase quantity this time, the button will be disabled and the copy with insufficient inventory will be displayed. Otherwise, the button will be highlighted and can be clicked and displayed if the shopping cart is displayed.他确实听到了，不过是黄豆说的。赵耘对儿子看了看，问道：会不会打扰？世子必定还有其他客人。